London: Arsene Wenger insists striker Diego Costa "should have been sent off twice" during Chelsea's victory over Arsenal on Saturday.


Chelsea's Diego Costa (right) clashes with Arsenal's Laurent Koscielny during their English Premier League match at Stamford Bridge on Saturday 

Jose Mourinho's men secured only their second win in the Premier League this season following second-half goals from Kurt Zouma and Eden Hazard, while the Gunners ended the match with nine men after Gabriel Paulista and Santi Cazorla were sent off.