Sunderland loanee Jason Denayer has been linked with a return to Turkey next season.
The versatile Belgium international joined the Black Cats on a season-long loan from Manchester City last August, Denayer going on to make 29 appearances for the club in defence and midfield.
Denayer will return to City now the Premier League season is over, with Sunderland relegated to the Championship after finishing bottom of the league 16 points adrift from safety.
And the 21-year-old has been linked with a return to the Turkish Super League, with Galatasaray keen to sign him.
The Belgium international spent the 2015-16 campaign on loan at the Turkish giants and they want to reunite with their former defender.
Denayer, who has also been on loan to Celtic, is not expected to be part of Pep Guardiola's future plans at City.
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Meanwhile, Manchester City midfielder Aaron Mooy is wanted by several clubs with Sunderland the latest to be linked.
The 26-year-old midfielder has enjoyed an impressive season on loan at Huddersfield Town, helping the Terriers reach the Championship play-off final where they face Reading at the end of May with a place in the Premier League up for grabs.
Newly-promoted Brighton plus relegated Middlesbrough and Sunderland have been linked, with several Championship and top flight clubs previously linked with Australian international Mooy.
Mooy has made 50 appearances this season, scoring four goals for the Terriers.
Sunderland are braced for a major summer overhaul following the club's relegation to the Championship.