IAAF President, Lord Sebastian Coe have described Justin Gatlin’s 100 meters victory over Usain Bolt at the World Athletics Championship as not “perfect”.

35-year-old Gatlin, who has been banned twice for doping, gate-crashed Usain Bolt’s 100 meters swansong party, returning in a time of 9.92 seconds to end Bolt’s 100m reigns.

Speaking to the BBC, Lord Coe said: “I’m not eulogistic that someone who has served two bans has walked off with one of our glittering prizes,”

“But he is eligible to be here.”

In Bolt’s last individual race as a professional athlete, the London crowd had expected a fairytale ending to the Jamaican’s 100m career, but Bolt could only finish third behind, Gatlin and rising star, Christian Coleman.

Lord Coe continued: “It’s not the perfect script. I thought Usain was very generous with the observations he made.

“That must have been a bitter event for him to swallow. He was bigger than the moment and it typifies his career.” he added.