ROME (AP) — Barcelona lost for the first time since August, and Manchester United and Chelsea needed late goals to win in a wild night of Champions League action Wednesday.
Barcelona had been unbeaten in 12 matches since the Spanish Super Cup against Real Madrid before falling 2-1 at Celtic, which is two points behind the Spanish power with two matches remaining.
United came back from a goal down to beat Braga 3-1 and qualify for the second round in a match that was stopped briefly because of a light outage.
Defending champion Chelsea needed a header from Victor Moses four minutes into injury time to beat Shakhtar Donetsk 3-2.
Last season's runner-up, Bayern Munich, routed Lille 6-1, and Italian champion Juventus had a 4-0 win over Danish side Nordsjaelland.