Updated: April 25, 2008, 12:26 PM ET
Powell has chest injury, out of 'USA vs. the World'
PHILADELPHIA -- Asafa Powell, the world record-holder at 100 meters, pulled out of the Penn Relays on Friday with an injured chest muscle.
The Jamaican sprinter was to participate in the "USA vs. the World" competition on Saturday.
Powell also withdrew from the Mt. SAC meet in California last weekend.
Powell holds the 100 world record of 9.74 seconds set last year.
Copyright 2008 by The Associated Press





