Arsene Wenger said surprise selection Yaya Sanogo deserves his chance against Bayern Munich after Olivier Giroud was sensationally dropped. The 21-year-old Frenchman has been thrown in at the deep end as the Gunners take on last season’s champions in a re-run of last season’s last 16 tie.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });Giroud has been a regular for Arsenal and is the Gunners top scorer with 14 goals this term while Sanogo has made just one start since arriving at the club last summer. He showed glimpses of his ability in the FA Cup win over Liverpool but the selection still comes as a major shock, with questions being raised over Giroud’s attitude, following accusations he romped with a glamour model just hours before a Premier League match. But Wenger said the decision was an easy one. “Sanogo is playing well, simple as that. You can debate every position. Giroud is a bit tired and needs to refresh,” he told Sky Sports. Read more Arsenal transfer news.