17-year-old Tampa sprinter Erriyon Knighton dashes into Tokyo Olympics

Erriyon Knighton, who turned 17 in January and turned pro as a junior at Hillsborough High School in Tampa, is set to become the youngest U.S. man to compete in track and field at the Olympics since Jim Ryun in 1964, the Tampa Bay Times reports. What's new: Knighton finished...