Previewing the top storylines and athletes to watch in the sprint and field events for the U.S. Olympic Track & Field Trials in Eugene, Oregon this weekend.
Simone Manuel, a reigning Olympic gold medalist, failed to qualify Thursday for the Tokyo Games in her best event after being diagnosed with overtraining syndrome.
Decorated Olympic swimmer Katie Ledecky will be in for a pair of serious battles at the Tokyo Olympics with Australia's Ariarne Titmus eager to chase records.