Americans to dominate 200m mens final ?

With three Americans in Thursday's men's 200m final after Wallace Spearmon and Rodney Martin ran 20.05 and 20.18 the only question is how big the medal haul will be.

Claiming a sore knee after his dominant 100m blast on Sunday Tyson Gay took the second heat in 20.00; good work by a man with the potential world sprint double in his sights.