Olympic medalists Bernard Lagat and Shalane Flanagan headline the U.S. contingent in Korea.
He's suffering from a nagging hamstring injury.
He's only competed in one race this season.
He is searching for his fifth world title in the 10,000m.
The American 10,000m record holder is confident of her chances.
Kiplagat, Choge have shown excellent form lately.
The 2009 winner, Will Leer is hoping for another victory.
The Villanova graduate will be giving the 26.2-mile race a shot in November.
She finally made the Kenyan team.
He is now running for himself and hopes to medal at Worlds.