Olivier Giroud red card was harsh - Arsene Wenger

Arsenal manager Arsene Wenger says striker Olivier Giroud's red card during their 2-1 defeat by Dinamo Zagreb was "harsh".

Giroud was sent off in the 40th minute of the Gunners' Champions League opener on Wednesday after picking up two bookings.

The France international was cautioned for dissent by Romanian referee Ovidiu Hategan before being shown a second yellow card for a foul on Ivo Pinto.