Former Manchester United star Marcos Rojo was caught wielding a fire extinguisher at match officials and opponents as violent scenes broke out following a Copa Libertadores match.
Chaos erupted after the second leg of the Copa Libertadores quarter-final between Atletico Mineiro and Boca Juniors early on Wednesday morning as some of the Argentine club's players, including ex-United star Rojo, tried to storm their opponents' dressing room.
Boca had just been knocked out of the competition in controversial fashion after losing on penalties following a 0-0 aggregate scoreline after two legs.
According to 90min, Boca were enraged by the refereeing in both legs, believing they had two legitimate goals dismissed by the video assistant referee, which ultimately cost them a spot in the semi-finals.
After the quarter-final tie, some players seemingly took the law into their own hands as violence broke out in the tunnel, where some of the Argentine side's stars tried to get their hands on the match officials, who were reportedly hiding in Atletico Mineiro's dressing room.
Video footage showed Boca players throwing various objects, including metal barriers, at club staff and officials as police tried to restrain them, appearing to use teargas to do so.
Another clip showed Rojo pulling a fire extinguisher from the wall and wielding it threateningly in the direction of Atletico's staff and the match officials. An individual at the scene immediately intervened, though, and stopped the player in his tracks.
Later, Boca midfielder Diego Gonzalez insisted that they deserved to win the tie.
"Without a doubt, everyone can see that. We scored a good goal, and the fact is that we deserved to win the first game as well," he said, per talkSPORT.
"This hurts, we feel bad. CONMEBOL needs to look at the refereeing."
Several footballers were reportedly arrested after the incident, with Brazilian police confirming that three players were "charged with civil disturbance".
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