Two men who play in hockey , one with a red jersey and one with a white jersey , are fist fighting each other .
It is improbable that two men are beating each other up because they are on opposite teams .
It is certain that two men are beating each other up because they are on opposite teams .
It is improbable that two men are beating each other up because they are on opposite teams .
Two men are beating each other up because they are on opposite teams .