Mats Hummels (Borussia Dortmund)
Arsenal have also been linked with an audacious swoop for Borussia Dortmund centre back Mats Hummels, should they manage to move Vermaelen on, although the German World Cup winner would cost a huge £30m.
He is one of the best centre backs in the world, however, and would be a huge statement of intent by the Gunners.