Justin Gatlin defeats world record holder Usain Bolt in the 100-meter final in London

Justin Gatlin tore up Usain Bolt's farewell script as he stole world 100m gold with the run of his long and controversial career.

Bolt was left with only a bronze in his final individual 100m race as 21-year-old Christian Coleman made it a USA one-two.

The 35-year-old Gatlin, twice banned for doping, came through almost unnoticed in lane seven in 9.92 seconds, with Coleman's 9.94 holding off the greatest sprinter of all time.

Despite struggling for fitness and form in his valedictory season, Bolt had still been favourite to secure his 20th global gold.

It was supposed to be Gatlin's year in 2015, when the American went to the World Championships in Beijing on the back of a 28-race unbeaten run.

Bolt produced his great miracle to beat him that night in the Bird's Nest, but in the stadium where he won 100m Olympic gold in 2012, he could not provide the perfect ending to a perfect career.

Gatlin, double Olympic champion in Athens in 2004, had been booed every time he went to his blocks in these championships, his doping past making him the cartoon villain of a troubled sport.

After his second positive test, for testosterone in 2006, he avoided a life ban after cooperating with the authorities, accepting an eight-year suspension that was then reduced to four on appeal.

Gatlin paid Bolt respect

That left him free to return to the track, and he was to have his revenge in spectacular style, standing tall and putting a furious finger to his lips as his win stunned the capacity crowd to initial silence.

The stadium took a little revenge of their own, chanting, "Usain Bolt! Usain Bolt!" as the result began to sink in.

But this was a deserved victory in its execution if not its formation, a last hurrah for a man that many in the sport wished no longer had the chance to compete.

"The first thing he said to me was congratulations."

Justin Gatlin says beating Usain Bolt was surrealhttps://t.co/ss8pwsyf0Q #London2017 pic.twitter.com/PuvNMWJtTv

— BBC Sport (@BBCSport) August 5, 2017

World champion Justin Gatlin: 

"I tuned it out [the booing] through the rounds and stayed the course. I did what I had to do. The people who love me are here cheering for me and cheering at home.

"It is Bolt's last race. It is an amazing occasion. We are rivals on the track but in the warm-down area, we joke and have a good time. The first thing he did was congratulate me and say that I didn't deserve the boos. He is an inspiration."

Here's an interview we're not used to seeing from Usain Bolt.#London2017 #bbcathletics #BeTheNext pic.twitter.com/LLRX2bw4fM

— BBC Sport (@BBCSport) August 5, 2017

Bronze medallist Usain Bolt:

"I tightened up at the end and that is something you should never do. I didn't execute when it mattered.
"I am not fully comfortable in those blocks but you have to work with what you have. I can't complain about that.
"He [Gatlin] is a great competitor. You have to be at your best against him. I really appreciate competing against him and he is a good person."

There was to be no triumphant end to Usain Bolt's final individual race.

The great Jamaican will retire after the IAAF World Championships in London, bringing the curtain down on an incomparable career.

BBC/Guardian