Barcelona could reportedly use Antoine Griezmann to sign Neymar in next summer's transfer window.
The Spanish champions were strongly linked with a swoop for the Paris Saint-Germain forward before the European transfer deadline closed at the start of September.
Neymar ultimately remained in the French capital, but it is still thought that the Brazil international is still determined to return to Camp Nou either in January or at the end of the campaign.
Griezmann, meanwhile, joined Barca from Atletico Madrid in a big-money deal over the summer, but the France international has struggled to make his mark in the early stages of the season.
The 2018 World Cup winner recently admitted that he does not have much of a relationship with Lionel Messi, and according to Le10sport, Barca are closely monitoring the situation between the two players.
The report claims that the Spanish champions would be prepared to lose Griezmann at the end of the season if it meant landing Neymar, meaning that PSG could be offered a straight swap.
Griezmann has scored three times in La Liga in the early stages of the campaign, although the attacker has netted just once in his last seven appearances for Ernesto Valverde's side in all competitions.