All the latest news and gossip from The Emirates Stadium this evening.
The German international, who has a release clause of £37 million, has been on the radar of Arsene Wenger for the past 24 months and rumours of his arrival periodically do the rounds in the press.
However it is believed that Arsenal's interest in the player cooled because of his injury troubles and dip in form.
However, in the past couple of weeks, they have again been linked with his signature as a potential replacement for Mesut Ozil.
However Manchester United are now said to be keen on the player, even reportedly sending scouts to check him out in action.
It is reported in Germany that United are ready to challenge Arsenal for the World Cup winner in the summer.
Meanwhile Arsenal are also said to be scouting a player dubbed the 'Turkish Gareth Bale'. The 18-year-old Batuhan Yayikci is highly rated in his homeland and are said to be lining up a £1 million offer for the player.