Mats Hummels (Borussia Dortmund – £32m)
It has now been suggested that Wenger has made world class Borussia Dortmund and Germany defender Mats Hummels his number one priority for the January window, although Jurgen Klopp’s struggling side will hold out for £32m for the dominant centre back and Premier League rivals Manchester United are also expected to enter the race for his signature strongly, with Louis van Gaal a big fan of the player.