The dirtiest football match EVER: Referee issues record 51 RED CARDS after mass brawl in Under-20 game in Brazil - and even the ball boys got involved!

A record 51 red cards were issued in an Under-20 football match in Brazil, confirmed by the Guinness Book of World Records as the most dismissals ever in a single game. The mass brawl resulted in 43 players and 8 members of coaching staff being sent off. Even ball boys reportedly became involved in the altercation.