In sport, as in any extreme situation, the human essence is revealed. If you want to find out what a person is, look at him on the football field or on the hockey court.
If he surreptitiously puts the bandwagon, does not admit his violation of the rules, argues with the judge for a long time, accuses teammates of making mistakes, then I do not advise you to go to reconnaissance with such a person. In everyday life it is most likely for him to be a petty, touchy and petty person.
If a person plays nobly, recognizes his violations, gives his hand to a fallen partner and even an opponent, does not humiliate his teammates, then in life, for sure, this is a noble, open, honest man. With this, I would make friends outside the sports field.