Gatlin win 'not the perfect script': Coe

LONDON - Justin Gatlin's win in the men's 100 meters at the World Athletics Championships was "not the perfect script", IAAF president Sebastian Coe said on Sunday.

Gatlin, of the US, has served two suspensions for doping offenses. His victory ruined Usain Bolt's fairytale farewell on Saturday by beating the Jamaican icon in his final individual race.

Bolt finished third, behind 21-year-old American Christian Coleman, whose compatriot Gatlin was loudly booed by the crowd at London Stadium.