Arsenal failed to make the Champions League last eight for the fifth straight season despite beating Monaco in the second leg of their last-16 tie. Needing to score at least three unanswered away goals after a 3-1 defeat at home, they went ahead through Olivier Giroud's close-range finish. A lively Danny Welbeck went close to doubling the lead before half-time. And although they continued their fine form with an eighth win from nine games, that blip in the first leg was enough to ensure Monaco reached the quarter-finals for the first time since 2004.