They don't
sumo wrestling
2 referees
'Obsessed With Wrestling' is a good place to look for that sort of thing, or even Wikipedia itself.
there are three referees in the NBA.
There are 7 referees in a game.
i think there are four referees.
There are four referees in a baseball game.
3 referees are in soccer and football
There are 2 referees and 2 linesman in an NHL game.
45
1