Manchester United are lining up a £20 million bid for Borussia Dortmund midfielder Mario Gotze. The Daily Star Sunday says a host of clubs are eyeing the Borussia Dortmund midfielder, with Arsenal heading Premier League interest.

Gunners chief scout Steve Rowley, in fact, is almost a permanent fixture at Dortmund matches.

But United scout Martin Ferguson - brother of manager Sir Alex - is now on the Gotze case.

United are in the process of assessing the German international, who is only 19.

Dortmund, who are trying to fight off interest, already value Gotze at £20m - and that could soon rise by a further ­ £5m.