Keep Calm and don't let him Carry the Ball...
as in Carrrying the ball illegally. Pun intended. Seriously, help him become a very good basketball player. The reward? A highly conditioned athlete. Also, make him concentrate and shoot free throws properly and accurately. Helps with overall concentration.
Require him to play tennis as you prescribe til at least age 12. You da boss. Foster the love of course, but run ya house. If he quits at 12, so be it. My 2 cents.