Arsene Wenger's decision in substituting Olivier Giroud 22 minutes into his side's 1-0 defeat to Chelsea was stated wrong by Thierry Henry.Gabriel replaced the striker after Arsenal's defender was presented with a red card for a foul on Diego Costa. Wenger explained that he wanted to keep the pace of Theo Walcott and Joel Campbell on the pitch but henry's views differed. "When Theo stayed and Olivier Giroud went off, we all thought it was because he wanted to go in behind and attack and be higher up the field on the counter," the retired Arsenal forward told Sky Sports. It's easy to talk when you're here [in the studio] watching the game with no pressure", he added. Sadly Arsenal missed its chance to move to the top of the Premier League, due to Diego's 23rd minute goal.