Alex Song – Barcelona
The former Gunners ace is the one player that the club have failed to replace and many believe that a decent defensive midfielder would have helped the club greatly this season to put more distance between themselves at the top of the league and the chasing pack below.
He has failed to settle in Spain and has seldom featured for the defending La Liga champions, making the notion of a potential return to north London all the more possible. He played his best football at the Emirates and would be foolish to rule out the opportunity to rekindle that.