In: Mats Hummels (Borussia Dortmund)
A surprise target perhaps, but recent reports suggest that Arsenal could make a £30m move for Borussia Dortmund defender Mats Hummels. The German centre-back is widely regarded as one of the best players in the world in his position after his recent starring displays for club and country. Known to be another top target for Manchester United, it could be that the Gunners will pip their rivals to his signature if they do agree to let Vermaelen make the move to Old Trafford.