Shinji Kagawa: Manchester United to Borussia Dortmund
The Japan playmaker has failed to settle since joining the Red Devils from Dortmund two years ago for a transfer fee believed to be somewhere in the region of £16m and £20m, so much so that Kagawa is definitely leaving Old Trafford come the climax to this campaign.
And if the Red Devils get their way, then they will use the player as a makeweight in a deal to bring coveted Dortmund forward Marco Reus to the Theatre of Dreams.