A raging Arturo Vidal branded the referee a "clown" who had "robbed" Bayern Munich of a place in the Champions League semi-finals after the Germans were knocked out in controversial circumstances by Real Madrid.
Midfielder Vidal was harshly sent off in the 84th minute of the second-leg clash at the Bernabeu, as Bayern led 2-1 after 90 minutes to force extra-time before the 10 men conceded three times in the additional period to fall to a 6-3 aggregate defeat.
Vidal, who missed a penalty in the first leg, was shown a second yellow card by Hungarian referee Viktor Kassai for a sliding tackle on Marco Asensio, while Bayern also felt Cristiano Ronaldo's two extra-time goals should have been ruled out for offside.
"When two top teams come up against each other, the referee must not be a clown, who turns the game into a show and gives Real the advantage," Vidal was quoted as saying by several German newspapers after the match.
"It is terrible, terrible. You could kill yourself.
"When we led 2-1 they were scared. But then the referee started with his show and with a man less it is very difficult.
"This robbery can not go on in the Champions League."
Meanwhile, Manuel Neuer suffered a broken foot in Bayern's defeat and looks set to miss the rest of the season.
The goalkeeper received a fracture to his left foot in extra-time of the 4-2 loss.
Neuer, who last month underwent what was described by the club as a minor operation on his left foot, picked up this latest injury during the build-up to Ronaldo's third goal, which put Madrid 3-2 up on the night.
Initial tests have revealed the damage, with Bayern saying in a statement he would "undergo a thorough examination on arrival in Munich prior to a decision on the appropriate treatment".
Bayern's statement did not say how long the Germany international would be out for, but he will in all likelihood not play again this season.