Don't get the impression that you arouse my anger. You see, one can only be angry with those he respects.
What starts the process, really, are laughs and slights and snubs when you are a kid. If your anger is deep enough and strong enough, you learn that you can change those attitudes by excellence, personal gut performance.
You must never be satisfied with losing. You must get angry, terribly angry, about losing. But the mark of the good loser is that he takes his anger out on himself and not his victorious opponents or on his teammates.