Allyson Felix will run her first 200 meters of the outdoor season today at the Adidas Track Classic in Carson, Calif., gearing up for the defense of her world title in the event in August.

Felix, along with Jeremy Wariner and Jenn Stuczynski, headline this year's Classic, which has moved to an evening format to enable better performances.

The event was set to have an all-star lineup with sprinters Tyson Gay and Veronica Campbell-Brown competing, but the two pulled out Wednesday.

Gay wasn't committed to racing at the event, but was hoping to run. His management group, Global Athletics & Marketing, said that he was "just not ready to run a 100 or 200 yet."

Campbell-Brown was slated for the 100, an event she won gold in at the world championships in 2007, against a group that includes Rochester's Lauryn Williams, Carmelita Jeter and Torri Edwards.

Campbell-Brown, a Jamaican star who shocked the world when she won gold in the 200 in Beijing, had to pull out because of a toe injury that has limited her since February.

Felix will run alongside Sanya Richards, a bronze medalist in Beijing in the 400, and Shalonda Solomon, who has the second fastest time in the 200 this season (22.74)

The women's 100 could be one of the most interesting races of the meet, pitting three of the U.S. finishers in the Olympics against each other. Williams, who finished fourth in Beijing, will run alongside Edwards and Muna Lee. Jeter, who has the fastest time in the 100 this season (10.96), is also in the lineup.

Wariner, who won silver and gold in Beijing, headlines the 400 meters. He's coming off a first-place finish in 44.69 at the Osaka Grand Prix a week ago.

Other notable performers include Shalane Flanagan, who won bronze in Beijing in the 10,000 meters but is running the 5,000 at the Classic, and Stuczynski, who will try to make it three consecutive pole vault titles at the event.

Usain Bolt says his outlook has changed after a car crash in Jamaica. Bolt, a three-time Olympic gold medalist, crashed his car into a ditch along a highway a month ago. He required minor surgery on his left foot after stepping onto thorns getting out of the car.

"After something like that you look at life through and over, and look at what has gone wrong -- where you should improve or should be careful," Bolt said.

With the stitches removed, Bolt returns to competition tomorrow in a 150-meter street race in Manchester, England. He set world records in the 100 and 200 meters and sprint relay at the Beijing Olympics.