Tyson Gay led home an American one-two to win the 100 metres at the London Grand Prix on Friday as he prepares for the Olympics in the British capital.
The former world champion won in 10.03 seconds in a headwind of 1.2 meters per second, ahead of compatriot Ryan Bailey and Nesta Carter of Jamaica.
Gays says he's in "pretty good shape, I just need to work on some things on my groin area with my physio and I should be good to go."
Gay added that the Crystal Palace track was "the best place to prepare" for the July 27-Aug. 12 Olympics.
Asafa Powell, one of Gay's chief rivals, was forced to withdraw with a groin strain to ensure he is fit for the games.
AP