Team USA for all the medals in 400m on Friday ?

Friday's final of the men's 400 meters sees all three Americans easily ahead.

2000 Olympic 400m hurdles gold medalist Angelo Taylor took the first semifinal in 44.45, defending champion Jeremy Wariner winning the second in 44.34.

Showing he is true to his word LaShawn Merritt took Heat 3 in 44.31. In recording the fastest time of the day Merritt is in it to try and win it, despite the obvious status of Wariner as the top dog.