I played flag football with a guy in Round Rock that was one armed. I believe he played Div 2 or 3 football (Brown) and then some arena league. He was our best receiver and could punt as good as anyone I have ever seen up close. Never saw him play basketball but I bet he was good at that too.
[This message has been edited by BBDP (edited 7/24/2013 4:22p).]
Practically, it would serve a lot of young players well to practice w/ one arm tied back. It would help improve their shot, and prevent future "Shawn Marions."