According to estimates, Barcelona need to slash roughly €200 million (£176m/$215m) in order to comply with La Liga's strict salary rules. While the Blaugrana have made strides in that direction in the past by cutting wages, they could look to sell some players. Among those in the firing line is left-back Jordi Alba, who is owed €38m(£33.4m/$41m) next year, according to Sport.

Barcelona could face yet another summer of financial issues. The Blaugrana are unable to register Gavi, Sergi Roberto and Ronald Araujo who all penned contract extensions, and according to La Liga President Javier Tebas, are barred from making any signings until they comply with salary cap rules.

The club's salary limit is currently €684m(£603m/$783m), well over the mark of €450m (£397m/$486m) they need to hit in order to spend this summer.

Manager Xavi reportedly wants to strengthen in a number of areas this summer in order to add depth for European competition. The club have also been repeatedly linked with a sensational reunion with club legend Lionel Messi.