Borussia Dortmund CEO Hans-Joachim Watzke remains confident of the club's chances of retaining the services of Marco Reus despite the interest of Manchester United.

The Germany international has once again found himself linked with a move to Old Trafford with recent reports suggesting Louis van Gaal – the overwhelming favourite to take the managerial reins on a permanent basis this summer – will make the winger a priority target.

With Dortmund to lose star striker Robert Lewandowski this summer to Bayern Munich reports have suggested Reus, who has a release clause of £29.4m, may be next to seek a fresh challenge.

Although Watzke expects strong interest in one of the club's stand out players this season, he does not envision any problems in retaining the 24-year-old.

When asked by the club's official website if he was nervous about the upcoming transfer window, he replied: "Not at all. Quite the opposite. It's not a surprise that our players are moving into the focus of top European clubs in view of their performances. We know what we have with Marco.

"On the contrary I'm quite sure that Marco likes it here with us very much and knows what he has with this extraordinary club.

"Otherwise he wouldn't be able to display these performances so consistently. I'm sure that Marco will celebrate more successes with Dortmund and besides we are pleased about the way Jurgen Klopp and for example Mats Hummels have expressed their feelings of belonging to Dortmund again and again over recent weeks."

Reus, his Dortmund teammate Hummels and Bayern Munich central midfielder Toni Kroos are reportedly the three names that top van Gaal's wish list, while Bild suggest a fourth Germany international in Thomas Muller would be keen to link up with his former manager at Old Trafford.

Talks between the Dutch coach and United are understood to be ongoing with an official announcement expected later this week. The 62-year-old coach is keen to have a deal in place by 7 May when he will begin official duties with the Dutch-based players as part of their World Cup preparation.