6. Julio Baptista
Julio Baptista only spent one season at the Emirates, after he was sent out on loan by Spanish Giants Real Madrid in 2006. He arrived at Arsenal with a fierce reputation as an out and out goal machine following his 38 goals in 63 appearances for Sevilla between 2003-05. Yet he only managed 4 goals in 24 appearances for Arsenal, and the Gunners sent him back to Madrid at the end of his loan spell instead of taking up the option to buy him from Madrid.
Where is he now? After leaving Arsenal on loan he went back to his parent side Real Madrid. In 2008 he was sold to Italian side Roma. He made his return to La Liga in 2011 however and is currently at Malaga.