#3 Lucas Perez
Perez was only bought by the Gunners in the summer transfer window that just passed, but he could leave them after just one year at the club.
As a striker or a winger, he looks to be way down in the pecking order, behind Alexis Sanchez, Olivier Giroud, Danny Welbeck, Theo Walcott and even youngster Alex Iwobi. Due to this reason, the Spaniard will be extremely frustrated and look to leave North London this summer, with rumours already beginning about his departure.
Perez, despite only making a few appearances for Arsenal, has been reasonably impressive. For example, scoring a hat-trick in the Champions League demonstrated his ability as a goal scorer.
He looks set to leave the club in a disappointing fashion, considering the promise that it created when he first joined the club. Having played such a little amount this season, it appears Arsenal have conceded the fact that he will be leaving.
