Arsenal beat West Ham 2-0 thanks to goals from Denilson and captain Cesc Fabregas.
However Thomas Vermaelen was sent off in the 44th minute as the defender is judged to have pulled Franco’s shirt as they tussled for a long ball.
Manuel Almunia however saved the penalty taken by Diamanti.
Arsenal now go back to the top of the Premier League table.
Denilson Goal
Fabregas Goal