Borussia Dortmund have reportedly opened contract talks with Ilkay Gundogan in the hope of keeping the midfielder from the clutches of Manchester United during the summer transfer window.
According to talkSPORT, the Champions League semi-finalists are concerned Manchester United could move for Gundogan before August's transfer deadline, and hope to convince the player to sign a two-year contract extension.
BVB are already expected to lose striker Robert Lewandowski over the next few months, with the Poland a target for Manchester United and Bayern Munich, while Mario Gotze has already agreed a transfer to the Allianz Arena.
Manchester United completed the signing of Dortmund star Shinji Kagawa last year, and the are reportedly striving to not allow the same fate with Gundogan 12 months on.
The 22-year-old Germany international has been in impressive form during BVB's run to the last four of the Champions League, and last season's Bundesliga winners look set to book a place in the final following a 4-1 trouncing of Real Madrid in the first-leg.
Gundogan's performances have seemingly attracted the interest of Manchester United, as Sir Alex Ferguson reportedly considers bringing midfield reinforcements to Old Trafford this summer.
Paul Scholes could retire for a second time at the end of the season, which could prompt the search for a replacement, and Manchester United have already been credited with an approach for Nemanja Matic of Benfica.