Transfer report: Manchester United keeping tabs on THREE Bayer Leverkusen stars

Manchester United are preparing to launch a raid on Bayer Leverkusen for trio Omer Toprak, Hakan Calhanoglu and Karim Bellarabi, according to reports in Germany.

United have scouted the players regularly this season and have a particular interest in forward Bellarabi.

The Red Devils are set for a major revamp of their squad in the summer and it has been reported that they will bring in Jose Mourinho to replace Louis van Gaal as manager.

But the club's directors are already working on a making a number of signings no matter who is at the helm of the team next season.

According to Bild, Toprak, Calhanoglu and Bellarabi would all be open to moves to Old Trafford and their agents are apparently seeking contact with United representatives.

All three players have featured regularly for Leverkusen this season, with Bellarabi and Calhanoglu netting 15 goals between them.