After two years of uncertainty, Usain Bolt produced his biggest clutch performance Sunday, beating rival Justin Gatlin with a lunge at the line to win the 100-meter title.

"Everybody's in shock," Usain Bolt told BBC Radio 5 live after Justin Gatlin was eliminated in Wednesday's 200-meter semifinals. "You can tell from the 100 meters he's getting old." ...

Usain Bolt reaffirmed his status as athletics' biggest superstar by beating Justin Gatlin in Beijing to claim a third World Championships 100 metres title.

Gatlin, a renowned fast starter who hasn't lost over 100m or 200m since 2013 and has set personal bests for both distances - 9.74 and 19.57sec - this season, pegged equal with Bolt out of the blocks.

A sentimental Justin Gatlin hailed Usain Bolt as an "amazing showman" whose career would certainly not be defined by him pulling up with cramp in the world 4x100m relay, the Jamaicans final ...