The Marseille man is representing his country once again at the 2014 FIFA World Cup in Brazil and impressed in their 3-0 win over Honduras on Sunday.
Valbuena, who has also been linked with Arsenal, made 41 appearances in all competitions for Marseille last term, scoring three goals, but could be set for a move away from France.
The 29-year-old's agent, Jean Pierre Bernes, told Canal+: "The World Cup will be a great shop window for Valbuena.
"There are serious talks with two or three clubs, including Fiorentina and some Turkish sides.
"For now, though, we are only at the start of negotiations."
Valbuena extended his Marseille deal in February last year, meaning he is under contract until the end of the 2016-17 season. He has also been linked with a move to Barcelona.