Manchester United have reportedly joined the race to sign Red Star Belgrade youngster Marko Grujic, who has also been strongly linked with Chelsea.
The 19-year-old, who came through the academy at Red Star, has made more than 20 league appearances for his Serbian club since 2013.
A number of sides have been credited with an interest in the tall midfielder, but according to the Daily Mail, Manchester United are preparing an offer for the Serbian youth international.
Grujic, who is believed to have been watched by Chelsea scouts this season, has also previously had a loan spell with Serbian side Kolubara.