MANCHESTER UNITED are planning a triple raid on Bayer Leverkusen this summer, according to reports.
The Red Devils are keen to strengthen their side in the transfer window with improvements in defence and midfield a priority.
And according to German publication Bild, United have identified three players at Leverkusen that would make ideal signings.
United are reportedly keeping tabs on defender Omer Toprak.
The Turkish international has been with Leverkusen since 2011 and United are said to have had scouts present in recent weeks to watch him play.
Midfielder Karim Bellarabi is another target for Louis van Gaal's side, despite the 25-year-old only signing a contract extension back in February.
Liverpool have been linked with a move for Bellarabi as Jurgen Klopp looks set to spend big in the summer, while Arsenal are said to be monitoring his progress.
And Bild claim the last player United are keeping tabs on is midfielder Hakan Calhanoglu.
The Red Devils were linked with a move for the talented 22-year-old last summer but a move never materialised.
United could renew their interest in him in the summer but face competition from Barcelona to secure his services.