Previous to that Arsene Wenger brought on Thierry Henry for Oxlade-Chamberlain. Gooners are still wondering why it is Chamberlain that is being removed and not someone like Theo Walcott who was not at his best in the North East. It is nothing to do with footballing ability or indeed impact on the game like at Manchester United. Chamberlain is being protected, Arsene doesn't want him to play 90