On Feb. 25, 1964, the boxer then known as Cassius Clay ... a boxer named Cassius Clay showed up at a basketball practice in 1964 and challenged Paul Silas to a game of one-on-one hoops. ...

Clay was perhaps the most talented boxer who ever lived, but Silas said he wasn’t very good at basketball. “It took him awhile to make one,” Silas said. “He wasn’t a basketball player.