Former 100-metre world record holder Asafa Powell will not compete at the 116th edition of the Penn Relays now taking place at the University of Pennsylvania in Philadelphia.

Powell was expected to anchor one of two Jamaica mens 4 x 100 teams on Saturday in the USA versus the World Series.

He was scheduled to clash with Usain Bolt, the world record holder in both the 100 and 200 metres, who is down to anchor the other Jamaica team.

However, Powells coach Stephen Francis was quoted on a website this morning saying the race is not a part of Powells schedule.

USA Track and Field spokesperson Jill Geer confirmed that Powell would not run.

Powell was the featured attraction at the 2009 Penn Relays, but he pulled up with an ankle injury while running the anchor leg of the 4 x 100 metres.