Usain Bolt and Justin Gatlin

What to watch in primetime on NBC: Day 9

  ET/CT users: Watch the stream here at 8:00 p.m. ET / 7:00 p.m. CT MT users: Watch the stream here at 7:00 p.m. MT PT users: Watch the stre…

Justin Gatlin and Trayvon Bromell

Who can beat Usain Bolt?

All eyes were on Usain Bolt and Justin Gatlin during the 100m final at the 2015 World Championships. Injuries made Bolt seem beatable. He ha…