Not all sports are built alike. Finding the right activity for your child is key.
It's been interesting to watch each of my sons find the best fit for himself, sports-wise.
My older son used to wrestle, but his self-esteem took too much of a blow whenever he lost. Then he took up soccer and loves the game's constant action. My younger son used to play softball, but his attention would wander when the games ran long. He loves playing basketball, however, and never tires of running up and down the court.