It was ruled that he was too young to compete.
He hopes to improve on his own world record next year.
Ethiopia captured the men's and women's titles.
He is confident he will be cleared of them.
The Lithuanian citizen can represent the U.S. in triathlon, but not track and field.
Over 100 world-class athletes had backed the bid.
James Kwambai held off a strong field to win the race.
The U.K. Sports minister says that Britain needs a unique venue for track and field.
The American 800m champion thinks his sport is dying.
A controversial IAAF ruling has many people up in arms.