As a child, I also didn't like sports - mainly because I was asthmatic, unable to (or so I thought), and therefore apathetic to it.
As a teenager, as my asthma receded, I came to enjoy sports. Now, practising martial arts, I really see the value in always pushing and analysing oneself, and likewise, pushing others, competing, and analysing them to see how I can overcome them. Meanwhile, I hope and expect they are doing the same.
Experiences like those that the gay high school football player suffered ( http://www.sportssuck.org/gayfootball.htm ) do make me understand how some people can come to dislike sports though... however, it's not the sport to blame here, but a cruel culture of intolerance.