Led by nine-time Olympic gold medalist Carl Lewis (who bowed out last fall), one of the most decorated generations of U.S. track and field athletes is moving toward retirement. Below, a look at the biggest stars and who's next in line.
R�sum�: Four Olympic golds, four world championships in heptathlon and long jump; greatest U.S. women's track and field athlete ever.
Age, status: 36, likely to make farewell appearance in St Louis on July 25.
Sydney prospects: None.
Possible successor: As multievent superstar, nobody. As long jumper and queen of U.S. track and field, Marion Jones.
R�sum�: World-record holder in long jump. Two-time Olympic silver medalist, six-time national champ, longtime rival of Lewis's.
Age, status: 34, expected to retire any day.
Sydney prospects: None, but if Lewis un-retires, expect Powell to follow suit.