Hours later, before they were tested for drugs, 12 United States male track and field athletes flew home.

After the first positive findings, 12 American male track and field athletes flew home on the eve of competition.

Juan Alberto Morillo (born May 20, 1972) is a male track and field athlete from Venezuela.

Demetrius Pinder (born 13 February 1989) is a male track and field sprint athlete who competes in the 400 metres.

America's top two male track and field stars know this well.

Ronny Ray (born January 2, 1954) is a retired male American track and field athlete, who competed in the sprints events during his career.

Four track and field athletes, two male and two female, won more than one event:

But he was far from secure in attempting to become the first male American track and field athlete to qualify for five Olympic teams.

Gonzalo Miranda (born October 6, 1979) is a male professional track and road cyclist from Chile.

Lewis, 35, is the first male American track and field athlete to qualify for five Summer Olympic teams.