“For Hornsby, it was a chance to play one-on-one against the best basketball player he’d ever face, a certain future pro. He’d played high school ball, the only white on a team of blacks, and he stayed in shape by playing hoops on the road. As a piano player, however, Hornsby had to guard against any injury to his hands. So he’d come up with his ‘Piano Hands Rules.’ Each player would get one shot each time they got the ball, and any rebound would be an automatic change of possession.”