Ivica Olic hit an injury-time winner to give Bayern Munich the advantage over a poor Manchester United team, and set up a brilliant second leg against the Red Devils.
United took the lead after only 66 seconds when Wayne Rooney volleyed in six yards out from Nani’s free-kick.
But Franck Ribery’s deflected free-kick set up a dramatic finale, rounded off by Olic’s cool run and finish after a defensive error by Patrice Evra.