text: why did roy keane leave manchester united? i just noticed it now. the same reason beckham left and ruud will be leaving, sir alex. he rules with an iron fist, which is good but sometimes these things happen. you can't believe you are bigger than your club. sir alex will set those egos straight.  it's best to do what coach says...ask beckham. what a miserable career in spain. he was a god in the uk but now a mediocre player aboard.