LONDON (AP) — The only way for the United States to turn the Olympic sprints into a real rivalry with Jamaica is to start winning every now and then. When the women begin the 100-meter heats Friday, the Americans might find that's easier said than done. Lining up for Jamaica will be 2008 gold medalist Shelly-Ann Fraser-Pryce, silver medalist Kerron Stewart and Veronica Campbell-Brown, who has five Olympic medals but wasn't fast enough to qualify for the 100 in Beijing. Read More... More on Summer Olympics