Sol Campbell
Having done the unthinkable and left Tottenham to join Arsenal, Sol Campbell went from rival player to Gunners hero.
The centre-back had two spells at Arsenal, including the 2003/04 Invincibles season. Campbell also scored in the 2006 Champions League final, where Arsenal were eventually beaten by Barcelona.
Campbell ended his career at Newcastle in 2011, but will always be remembered for his time at the back for Arsenal.