One of Barcelona's stars, Ilkay Gundogan, is already being linked with a transfer after just five months at the Catalan giants.
The midfielder wants to wear the shirt of Turkish side Galatasaray until the end of his career, according to Spanish publication Sport.
The 33-year-old Germany international joined Barcelona as a free agent in the summer from Manchester City and has attracted attention in recent weeks for his open criticism of the team after the defeat to Real Madrid.
According to the newspaper, Gundogan met with representatives of Galatasaray after the Turkish giants' match against Bayern Munich in the Champions League. The parties discussed possible options, and the midfielder even informed Barcelona's management of his plans before leaving the team.
Ilkay Gundogan has a current two-year contract with Barcelona with an option to extend for another season.