Barcelona and Bayern Munich both hold slim leads following their Champions League quarter-finals first-legs. Holders, Barca, came from behind to beat Atletico Madrid 2-1 at the Camp Nou. Fernando Torres put the visitors ahead in the first half but was sent off soon afterwards, and Luis Suarez scored twice in the second period to turn the game around. In Germany, Arturo Vidal gave Bayern Munich a slight advantage over Portuguese giants, Benfica. The midfielder nodded home Juan Bernat's cross in the second minute as the five-time winners claimed a 1-0 victory.