Multiple choice general knowledge sports which team defeated Manchester United in th semifinals of 2006-07 Chanpions league Barcelona Arsenal AC milan Juventus Reveal answer Fill a bubble to check yourself C Correct answer Explanation In the 2006-07 UEFA Champions League semifinals, AC Milan defeated Manchester United 5-3 on aggregate (losing 3-2 away but winning 3-0 at the San Siro). AC Milan went on to win the final against Liverpool.