Britain's Michael Bingham finished third in the 400m behind American Jeremy Wariner, who won in 44.94.

BBC: Powell beats Gay in Brussels 100m

So we're talking about Jeremy Wariner, in the 400 meters, and he's got some strong competition this year.

NPR: U.S. Track Stars Vie for Spots on Olympic Team

American 400m runners Jeremy Wariner and Sanya Richards, as well as Ethiopia's Tirunesh Dibaba (5000m), all triumphed in their events to maintain their jackpot hopes.

BBC: Powell equals 100m world record