Olympic swimmer Michael Phelps used visualization techniques to help with his performance. Starting when he was young and continuing through to his appearance at the 2016 Olympics, he used mental imagery to see himself succeeding in his sport.
During the 1960s and 1970s, Muhammad Ali frequently used mental imagery throughout his boxing career. He visualized all aspects of each fight, including seeing the referee raise his arm in the air at the end of a match when declaring him the winner.