This is the first time ever Usain Bolt has been beaten in a 100m final at the Olympics/Worlds.
The 30-year-old Jamaican had been given a scare ahead of his last ever individual major championship appearance, with American Christian Coleman beating him into second place in the semi-finals.
And Bolt was unable to raise his level for the final, finishing third as 35-year-old Gatlin produced a season’s best to claim victory in London.
The result is likely to be a remarkable final victory for Gatlin, who has played second-fiddle to Bolt for much of his career.
Bolt will now be hoping that the 4x100m relay will give him a chance to bow out with a gold medal around his neck.
Men’s 100m Result
Gold – Justin Gatlin 9.92s
Silver – Christian Coleman 9.94s
Bronze – Usain Bolt 9.95s
Watch the race below: