Injured sprinter Carmelita Jeter pulls out of Rio Games

Usain Bolt and Shelly-Ann Fraser-Pryce began their quests for their third straight 100 gold medals with quarterfinal victories at the Jamaica National Senior Championships, which serve as the country’s trials.

Nick Symmonds, the 800-meter runner who also serves as a major voice for athlete’s rights in track, will not compete at the U.S. Olympic trials because of a left ankle injury. ...

World champion Vivian Cheruiyot qualified for the Olympics by winning the 10,000 meters at Kenya’s track and field trials. ...