Usain Bolt beats Justin Gatlin for gold in 100 at worlds

Beijing: Usain Bolt beat his controversial rival Justin Gatlin by just one-hundredth of a second on Sunday as he retained his world 100m title in a race billed as a battle between clean sports and doping.

Bolt, also the double Olympic gold medallist and world record holder, ran his season’s best of 9.79 seconds in a thrilling race against Gatlin, who has served two doping bans.