Arsenal manager Arsene Wenger confessed the 4-0 thrashing to Milan  is the kind of result “you take with you until the last day of your life.”
The San Siro hammering was the biggest European defeat in the history of the Gunners and left them needing to win 5-0 in the second leg in order to qualify for the Champions League quarter-finals.
“It never gets out of your system because you take it with you until the last day of your life,” admitted Wenger on Sky Sports.
“You can find 100 explanations why we had a poor performance and an off day. We lost against a good Milan team, not an exceptional one. Unfortunately we were punished severely.
“It is important not to dwell on that too much, instead focus on the next performance, respond in a positive way and ensure we have the mental qualities to be at this club.
“We have put together a good series of results and we can consider that night was just an off day.
“We are focused on what we have done well recently because we go into a battle now where we need confidence, belief and great commitment.
“We are in fourth position in the Premier League and we have an opportunity to qualify for the quarter-finals of the FA Cup. It is important that we are up for that and do not feel sorry for ourselves.”