Deportivo Roca and Cipolletti, rivals in Argentina's 3rd division, really, really don't like each other. In the middle of a match between the two earlier this week, one bad tackle sparked a full on melee, with multiple players catching fists to the face and studs to the body.
The match was suspended for 22 minutes while the two sides scrapped it out, with the ref exhausting his arm showing so many red cards. Eventually the match was called off and the visiting Roca players escorted off the pitch by riot police while fans hurled god-knows-what at them. Soccer, man.