Barcelona and Paris Saint-Germain are in talks over the transfer of Ousmane Dembélé after the forward requested the LaLiga champions to let him leave this summer, sources have told ESPN.

The French club's initial plan was to pay the 50 million ($54.9m) in the player's buyout clause which expired on July 31, but Dembélé rejected that possibility and urged the clubs to negotiate a fee that would satisfy all parties.

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The buyout clause in the France international's contract has now doubled to 100m, but a source have told ESPN that optimism remains on a deal, with Barca privately committed to accepting a deal close to the amount initially set in his previous clause.

Dembélé's agent would have taken 25m of the 50m in the player's buyout clause had PSG decided to proceed with that option and it remains to be seen how much will be retained if the two clubs come to an agreement.

Sources have told ESPN that Xavi met with Dembélé in recent days to try to convince him not to leave the club because he considers the winger to be a crucial part of his project. Dembélé started ahead of Raphinha, Ferran Torres and Ansu Fati in the 3-0 win over Real Madrid last weekend and scored a goal in the opening 15 minutes.

However, PSG's interest in Dembélé has changed his plans and is set to leave Barca, with his contract due to expire next summer and the Catalan club unable to match PSG's offer.

Dembélé arrived at Barca from Borussia Dortmund in 2017 when the club paid 105m plus add-ons but he has since enjoyed mixed success.

Last summer, Dembélé almost left the Camp Nou as a free agent but eventually reached an agreement to renew until 2024.

The Catalan club have Raphinha and Ferran to cover his potential exit but Xavi has publicly called for more reinforcements and Dembélé's departure is expected to shake up Barca's transfer plans.

Barca already signed Ilkay Gündogan, Oriol Romeu and Iñigo Martínez this window, and have been searching for a right-back and midfielder.