Sunday Surkhi--Temper and Sports

I have two instances of recent events to quote
Serena Williams losing her match making a bad remark to the lines person.
Michael Jordon making an ass of himself in the speech, at the ceremony when he was being conducted as the greatest player of Basket Ball.
I guess, to have a "high temper" helps in winning, I dont know. I am no winner in any sport. There are lots of (may be most of) excellent athletes who take their win and loss both equally gracefully. Some however are bad tempered foul-mouthed and outright rude persons even though they may be good players. I remember Tyson biting off ear of his opponent in boxing--a most unusual and unforgivable behavior which I would have barred him from ever entering into the arena for fighting after that if I was in some position. That is not Gladiator fight but a boxing game which was so examplified by the real greatest Mohammad Ali.
I like Serena but I have always liked her sister better but this bad behavior removes her from my list of likable players.
Many youngsters who go on to make great players start off as teenager talents and show erratic behavior in the beginning and then develop control and poise required for being on top or being amog the top players. I remember Conners improving rapidly though I saw lot of ticks of nervousness even later in his remarkable career. One of the most calm and composed behaviors I have seen is that of Bjorn Borg and also Pete Sampras (I watch a lot of tennis). Billie Jean Moffit (King) was a good player but was rash in behavior at least in the beginning, so was the hreat player Martina Navratilova. Chris Evert was however more graceful of these good players Billie Jean and Martins Navratilova lacked the female grace.