Usain Bolt wins gold again in men’s 100-meter at World Athletics Championships

(Photo : AP Photo/Matt Dunham)

Jamaica’s Usain Bolt celebrates after winning gold in the Men’s 100-meter final at the World Athletics Championships in the Luzhniki stadium in Moscow, Russia, Sunday, Aug. 11, 2013.

(Photo : AP Photo/Matt Dunham)

Jamaica’s Usain Bolt, center, starts in the men’s 100-meter final at the World Athletics Championships in the Luzhniki stadium in Moscow, Russia, Sunday, Aug. 11, 2013.

(Photo : AP Photo/Ivan Sekretarev)

Ethiopia’s Tirunesh Dibaba competes to win the women’s 10000-meter final at the World Athletics Championships in the Luzhniki stadium in Moscow, Russia, Sunday, Aug. 11, 2013.

(Photo : AP Photo/Anja Niedringhaus)

Winner Ashton Eaton of the United States, right, is congratulated by second placed Pascal Behrenbruch following the men’s 1500-meter decathlon at the World Athletics Championships in the Luzhniki stadium in Moscow, Russia, Sunday, Aug. 11, 2013.

(Photo : AP Photo/Matt Dunham)

Germany’s Michael Schrader competes in the men’s discus throw of the decathlon at the World Athletics Championships in the Luzhniki stadium in Moscow, Russia, Sunday, Aug. 11, 2013. <AP/NEWSis>