Many - if not all - sports seem to be only about winning. The rules of any particular sport determine what counts as permissible, and what counts as winning, and individuals and teams can "win ugly". In fact, winning is all that counts.
But it's possible to argue that this isn't the case at all. Anyone who has watched the Spain or Barcelona football teams over the last few years will know that both teams pride themselves on the aesthetic dimension of their football; in fact, some people have gone so far as to say that they've invented a new type of playing style.
But is it actually art, as such? Can a brilliant goal, e.g. Dennis Bergkamp's goal against Argentina in the 1998 World Cup, actually have a purely aesthetic value?