LONDON (Reuters) - All eyes will be on the swimming pool later on Tuesday when Michael Phelps could make history by becoming the most decorated Olympian of all time and the first man to win the same event on three occasions.
If he succeeds, however, his achievement faces being overshadowed by Chinese sensation Ye Shiwen, 16, who is chasing a second London Games gold medal after setting tongues wagging with an eye-popping swim for her first.
