But when he was young and playing well, Sam said, it was a different story. In those days, as I’ve said, he’d lie in bed and replay his round in his mind as if he were watching it on television. But when he came to a shot he’d mishit, he would revise the tape he was playing in his mind. He’d erase the bad shot and envision himself making a good one. He’d fall asleep thinking only of good shots, and he would wake up the next morning feeling refreshed and confident.

