Atletico Madrid survived defeat to Sporting CP to reach the Europa League semifinals.
Tournament favourites Atletico Madrid also advanced to the final four, despite a 1-0 loss to Sporting in Portugal.
Colombian Fredy Montero's header from a far-post cross in the first half gave Sporting some hope against a team that had won 13 of their previous 15 contests in all competitions.
Antoine Griezmann squandered two great opportunities in the second half to ease Atletico's nerves, yet they were able to hang on anyway and won 2-1 across the two legs.