Most red cards in a football match

The highest reported number of players sent off in a single football match is 36 in the Argentine Primera D game between Club Atlético Claypole and Victoriano Arenas refereed by Damián Rubino (Argentina) at the Estadio Rodolfo Capocasa, Claypole, Argentina, on 27 February 2011. All 18 players on each side (11 onfield players and 7 substitutes) were sent off following what the referee described in his post-match report as a "Generalized Brawl" that seemed to have been the result of a series of confrontations and heavy tackles that had taken place throughout the feisty encounter. The game was the 23rd round of matches in the Primera D, the fifth tier of Argentine football, in what was in theory a regulation league match, there was no historic rivalry between the sides.