Usain Bolt of Jamaica is hit by a cameraman on a Segway while celebrating his win in the 200-meter final during the 15th IAAF World Championships at National Stadium in Beijing. Reuters/Landov hide caption
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Usain Bolt of Jamaica is hit by a cameraman on a Segway while celebrating his win in the 200-meter final during the 15th IAAF World Championships at National Stadium in Beijing. Reuters/Landov hide caption
Competitors race at the IAAF World Athletics Championship held in Osaka in 2007. Athletes' samples that were kept from the event have now been retested, resulting in suspensions, the IAAF says. Kai Pfaffenbach/Reuters /Landov hide caption
Kira Grunberg, seen here competing last summer, was severely injured in a training accident this week. Doctors say she is now a paraplegic. Ian Walton/Getty Images hide caption
University of Connecticut defensive back Byron Jones takes off for the broad jump at the NFL combine Monday. Jones recorded an NFL record of 12 feet 3 inches. Julio Cortez/AP hide caption
Kenyan runner Hyvon Ngetich didn't win the Austin Marathon — but she's being celebrated for the way she finished it. YouTube hide caption
Shortly after winning this race, Tyson Gay acknowledged failing a drug test. He is believed to have used a cream provided by an anti-aging specialist whose clients include several NFL players, reports ProPublica. Fabrice Coffrini/AFP/Getty Images hide caption
Sweden's Emma Green Tregaro sports red nails as she waits to compete in the women's high jump final at the 2013 IAAF World Championships in Moscow. Green Tregaro was told her rainbow-colored nail violated track's rules against political statements. Adrian Dennis/AFP/Getty Images hide caption