AC Milan reached the semi-finals of the Champions League on Tuesday after Olivier Giroud struck the crucial goal in a 1-1 draw at Napoli which completed a 2-1 aggregate victory over their fellow Italians. Giroud tapped in what turned out to be the decisive goal two minutes before the break after a blistering run from Rafael Leao, who was once again key as Milan beat Napoli for the third time this month. The France striker's 13th goal of the season saved his blushes after he missed a penalty midway through the first half.