Out: Santi Cazorla
A disappointing development in an otherwise great summer for the Gunners, Santi Cazorla could be heading back to Spain after just two seasons at the Emirates Stadium after becoming a top target for La Liga champions Atletico Madrid. Still, at 29 years of age, Arsenal may benefit from cashing in on him now, particularly as they have plenty of depth in the attacking midfield area already, and with Arsene Wenger seemingly ready to reinvest the money from his sale on other top quality signings.