Barcelona's signing of Antoine Griezmann has been contested by Atletico Madrid, who claim their LaLiga rivals did not in fact trigger the player's release clause.
The 28-year-old forward has penned a five-year deal at the Nou Camp after Barca agreed to pay his 120m buyout clause.
However, it is the numbers involved that are causing problems, with Atletico claiming that the Catalans should have to pay an extra 80m euros as his release clause was set at 200m euros when the deal was first agreed.
Griezmann was presented as a new Blaugrana signing on Sunday and it is not known whether the latest action will prevent him from playing for the Spanish giants, but it seems as though the issue is far from over.
Barca president Josep Maria Bartomeu has predictably rejected Atletico's version of events and claimed that first contact was made after Griezmann had announced his desire to leave.
Barcelona wing-back Marc Cucurella has joined Getafe on a season-long loan, with a view making his switch permanent in a six million euros deal.
The 20-year-old Spain youth international wing-back worked his way through the ranks at Barca and then joined Eibar on a season-long loan deal last summer.
Cucurella made 33 first-team appearances at the Ipurua, scoring one goal, ironically against Barca, as Los Armeros then took up the option to sign him for 2m euros.
But the Blaugrana included a clause to buy him back, which they enforced immediately and doubled Eibar's money in the process by paying them 4m euros.
It was believed that AC Milan and Borussia Dortmund were circling with a view to making a 10m euros bid, but Getafe have now snapped up Cucurella with Barca set to make a small profit when he moves to the Coliseum Alfonso Perez full-time in 12 months.
Barcelona are pushing ahead with plans to bring Neymar back to the Nou Camp after offering £90m plus two players for the Paris Saint-Germain forward.
The wantaway Brazil international, who has struggled with injuries of late, is eager to return to his former club in Catalonia after struggling to settle in the French capital with the Ligue 1 giants.
Barca are thought to have put down £90m on the table and given the Parisian outfit a list of six players from Camp Nou that could be included in a potential deal.
Reports have suggested the list from the Bluagrana includes the likes of Philippe Coutinho, Ousmane Dembele, Ivan Rakitic, Nelson Semedo, Malcom and Samuel Umtiti.
PSG could look to cut their loses with Neymar, having made the former Santos star the most expensive player in the world.
Serie A champions Juventus have been linked with a move for the South American but Barcelona appears to be the destination for Neymar and this latest news of an offer looks to be another step closer to seeing the forward back at Camp Nou.
Atletico Madrid have bolstered their defensive options after swooping to sign defender Mario Hermoso from fellow LaLiga outfit Espanyol.
Diego Simeone has been looking for a replacement for experienced man Diego Godin since he left the club on a free transfer to join Inter Milan.
They have turned to the 24-year-old Hermoso, who has agreed a five-year contract at the Wanda Metropolitano.
Atletico have paid Espanyol around 25million euros for his signature with 4million euros in potential add-ons, as the three-time Spain international only had a year remaining on his contract.
He is the latest arrival in Atletico's summer spending spree, with Joao Felix being the headline buy after signing from Benfica for £112million, though they have recouped money from Barcelona for Antoine Griezmann.
And Atletico are confident that the impressive defender will prove to be a good buy.
"We welcome an extraordinary player, who, despite his youth, has experience and a promising future," a statement read on the Atletico website.
"He arrives to make our squad stronger and we wish him all the best in this beautiful new challenge at Atletico de Madrid."
Full-back Kieran Trippier has paid tribute to Tottenham supporters after sealing a switch to LaLiga outfit Atletico Madrid on Wednesday evening.
Trippier completed his move from Tottenham to Atletico, with the England right-back passing his medical for his £21m move to the Spanish La Liga side.
The 28-year-old was England's best player during their run to the World Cup semi-final last year, but that tournament may have taken a toll as he struggled for form and fitness for Spurs.
Trippier spent four years at Tottenham, with his last appearance for the club coming in the Champions League final defeat to Liverpool, and has thanked everyone for their support.
"THANK YOU. I've met some amazing people at @spursofficial many of whom I now call my friends," Trippier wrote on Instagram.
"To the Tottenham fans from around the world – you've been amazing.
"The support you've shown me and the team took us to new heights, and with the new stadium I have no doubt that the team and fans have many exciting times ahead!
"Wish everyone at the club nothing but the best. #spurs #thankyou."
Real Madrid have placed £72million price tags on both Isco and Marco Asensio amid reported interest from Manchester City, Manchester United and Liverpool.
Both players found themselves on the periphery of first team last term with Isco being limited to just 11 La Liga starts, while Asensio fared slightly better with 19.
The duo are understood to be available for transfer should the right offer come in but Real have no intention of allowing either to move on in a cut-price deal.
Los Blancos are keen to recoup some of the money they have already spent this summer for Financial Fair Play regulations, after the big money captures of Eden Hazard and Luka Jovic.
Real are also still being linked with other moves, with the rumours surrounding Paul Pogba's arrival not disappearing.
Isco has reportedly been courted by both Manchester United and Manchester City this off-season, while Asensio is understood to be wanted by Liverpool.
However, the report indicates that both players are happy to stay at the Bernabéu and fight for their place in manager Zinedine Zidane's team.
Real Sociedad winger Mikel Oyarzabal has the required talent to play for Premier League sides Liverpool and Chelsea, according to Alberto Lopez.
The 22-year-old was part of the Spain U21 side that won the European Championships in Italy recently, and he has already been capped by the senior side.
Usually deployed as a winger, the Eibar-born forward can also play centre-forward and started there when he scored twice and also bagged an assist in the final against Germany.
Oyarzabal is expected to leave Sociedad this summer and Alberto Lopez – who played for them between 1993 and 2006 – has named two Premier League clubs as possible destinations.
Lopez told Marca: "I really rate him. I don't think he has a lot of time left at Real Sociedad.
"He has so much talent and I think he could play in a great team like Chelsea and Liverpool."
Oyarzabal is a product of Sociedad's youth academy, progressing all the way up the ranks before making his first-team debut in October 2015, replacing ex-Arsenal attacker Carlos Vela.
Manchester United have reportedly been offered Brazil star Neymar by Paris Saint-Germain, with the French giants seeking a massive £200m transfer fee.
PSG sporting director Leonardo recently admitted that the club is prepared to sell Neymar after the forward failed to report for pre-season training.
Earlier this month, a club statement read: "PSG affirms that the player Neymar Jr was not present at the time and place required, without prior authorisation from the club.
"PSG regrets this situation and will take appropriate action."
Real Madrid and Barcelona have been heavily linked over a potential deal for the 27-year-old as they are likely to be the only realistic destinations for him.
However, Mundo Deportivo (via Daily Express) claim that PSG have made five clubs aware of Neymar's availability with Barcelona, Real Madrid, United, Bayern Munich and Juventus all given the opportunity to sign him.
The French side are reportedly looking to get back the £200m they paid to Barcelona for him back in 2017.
Tottenham right-back Kieran Trippier is reportedly on the verge of sealing a move to Atletico Madrid after a fee of £21.7million was agreed by the two clubs.
The 28-year-old has been heavily linked with a move away from the Tottenham Hotspur Stadium all summer after a comparatively disappointing campaign for the north Londoners when considering his heroics in the previous season, as well as helping England reach the World Cup semi-finals in Russia 12 months ago.
Los Colchoneros have been tracking Trippier for some time and reports claim the two clubs have now agreed a fee.
The former Burnley full-back will travel to the Wanda Metropolitano for a medical on Wednesday and the hope is the deal will be concluded by the end of the week.
Atletico are believed to have offered striker Angel Correa in part-exchange for Trippier, but Spurs wanted a straight cash deal for the player.
Lilywhites boss Mauricio Pochettino is also thought to be willing to offload his other right-back, Serge Aurier, in this transfer window and will look to bring in Marseille's Hiroki Sakai as a replacement.
Barcelona have brought full-back Marc Cucurella back to the Nou Camp, having triggered his buy-back clause just weeks after he signed for Eibar.
The 20-year-old Spain youth international wing-back worked his way through the ranks at Barca and then joined Eibar on a season-long loan deal last summer.
Cucurella made 33 first-team appearances at Ipurua last season and scored one goal, ironically against Barca, as Los Armeros then took up the option to sign him for two million euros.
But Barca included a clause to buy him back, which they have enforced immediately as Eibar will secure double the money they have paid.
However, with AC Milan and Borussia Dortmund both thought to be leading the chase for Cucurella in this transfer window, the Catalan giants are still poised to make a profit as they are set to command a fee of around 10m euros for his signature.
Real Madrid are facing a race against time in their pursuit of Paul Pogba, with the Spanish giants reportedly struggling to match Manchester United's valuation of the midfielder.
There has been intense speculation about the 26-year-old's happiness and Pogba recently admitted he was considering "a new challenge somewhere else".
Pogba's agent Mino Raiola claims he is already in the process of trying to move on the France international, who has been linked with Real Madrid and a return to former side Juventus, and Ole Gunnar Solskjaer is aware of the player's intention to depart.
However, Solskjaer said last Tuesday that United don't have to sell Pogba or any other wantaway player this summer.
Recent reports have suggested, though, that Real Madrid must sell players before they can make an acceptable bid for Pogba.
And now AS (via Sport Witness) claim it is becoming one of the 'soap operas' of the transfer window with United setting their valuation for Pogba at €170m.
With the Premier League transfer window closing on August 8, Real are conscious that it will prove 'impossible' to sign Pogba after that deadline, despite the Spanish market remaining open.
AS believe that the only way United will sell is if they have a replacement signed before Pogba's departure.
The Spanish newspaper adds that his agent Raiola has been told by Real to 'not to tighten the rope' on a deal, while Sport Witness says the report adds that Pogba has been told by Los Blancos to 'stay silent' as upsetting United could 'complicate their efforts' to sign him.
Real Madrid midfielder Dani Ceballos is reportedly on the verge of joining Arsenal on a season-long loan agreement.
The 22-year-old has been linked with a move to the Emirates Stadium throughout the summer, but the situation looks like being resolved in the near future as the player is poised to return from an extended break after helping Spain's Under-21s win the European Championship in Italy.
Ceballos, who has scored five goals in 56 matches for Los Blancos after joining from La Liga rivals Real Betis in 2017, has also made six appearances for the Spanish senior squad in his career.
And reports in Spain claim he has decided to move to the Premier League ahead of next season and wants to link up with Gunners boss and compatriot Unai Emery in north London.
Ceballos, who has also been linked to Tottenham and AC Milan, looks set to join Arsenal on an initial season-long loan deal, but Real Madrid officials are thought to be keen on the move including an option to buy in 12 months.
Manchester United manager Ole Gunnar Solskjaer is hopeful that goalkeeper David De Gea will soon agree a new contract with the Old Trafford outfit.
After demands around the deal saw negotiations stall last season, The Sun claims that De Gea "is ready to sign an eye-watering £91million five-year deal when Manchester United return from their pre-season tour."
The Sun adds: "United have increased their £300,000-a-week offer to a whopping £350,000 in a bid to keep their superstar stopper."
Paris St-Germain, Juventus and Real Madrid - a club he was so close to joining in 2015 - have been linked to the Spain international, but Solskjaer is confident he will remain at United.
"Yeah, he will play tomorrow (against Leeds)," the United manager said. "And hopefully we can agree (a deal) with David, as I've said a few times.
"I think that'll be up to David and the club to announce if that happens. If and when."
De Gea joined United from Atletico Madrid in 2011 and he has won the club's Player of the Year award on a record four occasions.
Manchester City defender Nicolas Otamendi is pushing for a return to Valencia ahead of the new campaign, according to reports in Spain.
The Argentine defender was expected to leave in the off-season after falling down the pecking order last season behind Vincent Kompany, Aymeric Laporte and John Stones.
However, with Kompany's departure confirmed earlier in the summer, it was thought to have changed the dynamic at the Etihad, with the 31-year-old set to rotate with Laporte and Stones.
However, fresh reports have now indicated Otamendi still has his heart set on leaving and Valencia is his preferred destination.
City have been linked with other centre-backs in this transfer window, most notably Leicester and England man Harry Maguire, which may prove to be the catalyst for a move.
The report suggests Otamendi always expected to return to the Mestalla when he left in 2015 and an offer is currently 'on the table'.
Arsenal, PSG and Atletico Madrid have also expressed an interest, according to the report, but Otamendi will not consider those offers.
Tottenham are reportedly interested in a deal to bring Wales forward Gareth Bale back to the London club, provided the price is right.
Bale left Spurs for Real Madrid in 2013 for a then world-record fee of £89.2million but his time in Spain hasn't gone smoothly.
He may have won the Champions League on four occasions but doesn't now appear to fit into the plans of boss Zinedine Zidane.
A return to Tottenham has been heavily reported and Spanish publication Marca is the latest to suggest that a deal could be on the cards.
The report states they are happy to stump up between £45million and £54million to get a deal over the line although it may prove difficult to agree personal terms.
Bale's £600,000-a-week wages are likely to be a stumbling block in negotiations, with Spurs only willing to pay half of that amount.
Neymar has finally rejoined training at Paris Saint-Germain after failing to report for the beginning of pre-season amid reports he would return to Barcelona.
The Brazilian caused a stir when he failed to report for the first day of pre-season training with PSG, leading to suggestions he was trying to engineer a move back to Camp Nou.
PSG are set to punish the player for his no-show, but Neymar has now moved to cool the situation by telling reporters in Brazil that he will return to training with PSG as normal.
"The injury is fine," said Neymar.
"Coming back (to France) I will train normally, with the group. 100%.
"It was hard days after the injury, but I had to have a focus, take care so I could get back as fast as I could," he revealed.
The Parisians have suggested they would cash in on Neymar if any club, including Barca, matched their valuation, but as things stand that has yet to happen.
Granada have confirmed the acquisition of striker Roberto Soldado on an initial one-year contract after his contract expired at Turkish side Fenerbahce.
The 34-year-old former Spain international has had previous spells in Spain with Real Madrid, Osasuna, Getafe, Valencia and Villarreal, while he also had a disappointing two-year spell in England with Tottenham between 2013-15.
Soldado joined Fenerbahce in 2017 and scored 19 goals in 59 appearances before leaving when his contract expired at the end of June.
La Liga new-boys Granada have offered him a one-year deal with the option of another 12 months to see off competition from Levante for his services.
Sampdoria have bolstered their rearguard with the acquisition of defender Jeison Murillo from Valencia in a deal worth around 15 million euros.
The 27-year-old Colombia international has been in limbo at Los Che having been allowed to spend last season on loan at Barcelona, where he made just four appearances.
Barca boss Ernesto Valverde susbequently decided against making the move permanent and Murillo was told that he was not in the plans of Valencia coach Marcelino.
A number of clubs expressed an interest in signing Murillo but it seems Sampdoria have won the race to take him to Italy’s Serie A.
The former Inter Milan stopper is poised to move on a season-long loan deal worth two million euros with Samp set to make the move permanent next summer for another 13m euros.
Barcelona midfielder Philippe Coutinho's agent says that 'Liverpool lies very deeply in his heart', fuelling speculation that the Brazilian might rejoin Liverpool.
Coutinho left Liverpool for Barcelona under a cloud after he pushed for a move away from Anfield, but the move has not gone to plan and he has struggled for action.
There has been talk of a return to Liverpool or even Manchester United or Chelsea, but his agent Kia Joorabchian says a move to the latter two is unlikely.
He has also said Barca have no intention of selling anyway, meaning a return to Liverpool is also off the agenda for now.
"We had a meeting last week with the president [Josep] Bartomeu and other directors, and they told us he was absolutely not for sale," he said.
"I think Liverpool lies very, very deeply in his heart.
"He was a big fan of them throughout the campaign.
"He was wishing for them to win the title and he has a very strong affinity there so I think it will be very difficult for him to go to a direct competitor of Liverpool from a personal standpoint."
Antoine Griezmann has admitted that playing alongside Lionel Messi was a key factor in his decision to move from Atletico Madrid to Barcelona.
Barca released a statement on Friday to confirm that the 28-year-old had joined them from La Liga rivals Atletico Madrid after they paid the 120million euros buyout clause to secure his signature.
The France international, who scored 133 goals from 257 appearances in all competitions for Atletico, having joined them from Real Sociedad in 2014, was then unveiled at a press conference on Saturday afternoon.
And speaking about his switch to Barca, a delighted Griezmann said: "I am very, very happy to be here and excited to start.
"I am eager to get started and work with the group.
"There will be new challenges and I want to win everything – the League, the Copa and the Champions League."
He added: "It was a difficult decision to leave Atletico, but you have to make these decisions.
"It has been a joy to play against Lionel Messi in the past, and I know I want to experience that every day in training.
"I am at a great club and I am looking forward to the future."