Marcos Rojo was sent off late in Boca Juniors' Superclásico win over River Plate on Sunday for a high-studded tackle which hit an opposition player in the head.
The former Manchester United defender was immediately shown a red card after inadvertently kicking an attacker's head in their 1-0 win during the hotly contested Buenos Aires derby.
With 30 seconds of stoppage time to play, Roja was going for a 50-50 ball in mid-air when the bottom of his boot made contact with Uruguayan midfielder Nicolas De la Cruz, who was rushing in to try and head the ball.
Referee Dario Herrera immediately showed the 32-year-old a red card for the reckless tackle, although some on Twitter were quick to defend him.
One said the tackle was 'never a red', whilst another wrote 'Only thing that earned him that red card is reputation, that wasn't a straight red card challenge'.
The win - sealed by a second half strike by Dario Benedetto - left Boca Juniors three points clear of their city rivals.
The bad blood between the teams has formed the fiercest rivalry in Argentina. When the clubs met in March, Boca Juniors had to be escorted off the pitch by riot police, as previously reported by MailOnline.
Rojo joined the club last year after seven years at Old Trafford, where he was known for being erratic - but he never picked up a red card for the Red Devils.
It appears that his unconventional style has continued in Argentina. Last year, Sportsmail reported that he was fined £18,000, and given a five-match ban, for his involvement in a post-match brawl against Brazilian Atletico Mineiro in the Copa Libertadores.
Rojo was seen punching a member of security, and picking up a fire extinguisher before being encouraged to put it back down again.
Meanwhile in May, he was criticised for appearing to be smoking a cigarette on the pitch after a cup final victory, while surrounded by members of his family, as reported by Manchester Evening News.