Adrian Lopez scored with a fizzing volley to earn Atletico Madrid a 1-0 win at La Liga rivals Valencia which eased them into the Europa League final 5-2 on aggregate on Thursday.
Atletico, who won the first leg 4-2, survived a first-half siege at a noisy Mestalla, but the hosts were unable to breach the visiting defence.
On a counter-attack in the 60th minute Diego found Adrian wide of the area and, after the ball bounced, the Spanish youth international struck a spectacular shot inside the far post.
Atletico had midfielder Tiago sent off 11 minutes from time, but Diego Simeone's side hung on to make their second Europa League final in three seasons.
Valencia poured forward in search of an early goal to start the fightback from their first-leg deficit but ran into inspired Atletico goalkeeper Thibaut Courtois, on loan from Chelsea, who kept them at bay.
The hosts had one of their brightest performers on the night, Sergio Canales, stretchered off in tears with what looked like a serious knee injury in the 59th minute and almost immediately Adrian ended the game as a contest.
Tiago's foolish red card came after he appeared to have been penalised for a handball, when it struck a Valencia player's hand in the area, and both teams became involved in a messy scuffle.
Atletico beat Valencia in the quarter-finals in 2010 on their way to winning the tournament with an extra-time 2-1 victory over Fulham in Hamburg.
