Barcelona president, Joan Laporta, has blamed their exit from the Champions League on key refereeing decisions.
Paul Cubarsi was dismissed for a last-man tackle as Atletico Madrid won the first leg at the Nou Camp.
Although Barca took a two-goal lead in the second leg, Ademola Lookman pulled one back for Atletico.
Hansi Flick’s men saw Ferran Torres’ second goal chalked off, before Eric Garcia was red-carded.
Laporta said: “In the first leg, we didn’t get a clear penalty and we got a red card when it had to be red on Pau Cubarsi’s foul.
“Then last night, the red card to Eric García was wrong. Koundé was there ready to win the ball. He wasn’t the last man.
“Also, it was wrong decision to disallow Ferran’s second goal and there was a penalty on Dani Olmo. Fermín got a big cut on his face… and not even a yellow card.”
