In Andre Agassi's best-selling autobiography, Open, he laid bare his entire career. He talked about the highs and lows of being a professional tennis player and what it took to become the No. 1 player in the world.

There was one extremely revealing excerpt that came very early in the book. Just how important his shower routine was in winning matches.

"I've won 869 matches in my career, fifth on the all-time list, and many were won during the afternoon shower." - Andre Agassi