2. Angel Di Maria
While Di Maria could be joining PSG, he still is a United player at the moment and if anyone has to prove something next season, it is Di Maria. The Argentine winger was brought in with a lot of fanfare and a ton of money but after a decent start to his Manchester United life, it all went downhill for the former Real Madrid star. It seems Madrid were the winners with the deal since they got a huge amount for a player that was unhappy, but he was unhappy at United as well it seems. Di Maria needs to get back to his Real Madrid ways and show everyone that he still has it.