Out: Nicklas Bendtner
Remarkably, Nicklas Bendtner is still an Arsenal player, despite not making an appearance for them since 2011. The Danish international has never managed to live up to his potential, or his own hype, looking far from the best striker in the league as he himself as often claimed he would become. He has endured failed loan spells at Sunderland and Juventus, and is thought to have rejected offers from several Bundesliga clubs this summer, hoping for higher wages or that offers from bigger teams will come in.
This troublesome personality is certainly one Arsenal could do without, and he will surely be released if no suitable offer comes in for him.