With so much focus on Usain Bolt's injured hamstring and the Russian team's ban amid charges of systematic doping, it's easy to lose track of who could be making the headlines at the Olympics in Rio de Janeiro.
Always among the marquee Olympic attractions, the track and field competition runs Aug. 12-21. From the 100-meter sprints to the marathons, there are 47 gold medals up for grabs. Some athletes and events to watch:
BOLT, OR UNBOLTED: Even if he was fully fit, Bolt, the world record-holder and two-time defending champion in the 100- and 200-meter sprints, will have plenty of competition. World championship silver medalist Justin Gatlin recorded the two...