LONDON (Reuters) - Justin Gatlin said it was sad that fans booed his victory in the world 100 meters final on Saturday, saying he had “done my time” for his doping offences - and Usain Bolt, the man he beat into third place, agreed with him.

Athletics - World Athletics Championships – Men's 100 Metres Final - London Stadium, London, Britain - August 5, 2017. Justin Gatlin of the U.S. celebrates after winning the race. REUTERS/Dylan Martinez

Gatlin took the title in 9.92 but instead of acclaiming the remarkable success of a 35-year-old triumphing 13 years after he won the Olympic title, vast swathes of the crowd booed him in response to his two bans for drugs offences earlier in his career.

“It’s kinda sad that my boos were louder than some of the others’ cheers,” Gatlin told reporters.

“I wanted to keep it classy and at the end of the race bend the knee to Usain. Pay homage to him. This night is still a magical night for track and field and for Usain Bolt; he’s done so much in his career.”

“I wasn’t booed in 2010, 2011 or 2012 - or 13, 14 or 15 - and now I am. I’m just sitting up here, I’m a runner, I’m back in the sport, I’ve done my time, I’ve done community service. I’ve talked to kids, I inspire kids - that’s all I can do,” the American added.

“Society does that with people who make mistakes and I hope track and field can understand that too.”

Bolt, who finished third behind American Christian Coleman, agreed.

“Over the years I’ve always said he’s done his time,” said the Jamaican, who was the first to hug Gatlin post-race.

“If he’s here, it’s okay. I’ve always respected him as a competitor. He deserves to be here, he’s worked hard.

“I treat him like any other athlete - as a competitor.”

Gatlin was asked if he thought his victory had been a disaster for the spot.

“I wasn’t focused on the boos, I wasn’t thinking about whether my win tonight was a disaster for the sport,” he said.

“I really did it for my fans, my support staff, my countrymen, the people who really believe in me, even when I didn’t believe in myself,” he added.

“For the first time I was thinking about them not myself and it took the pressure off.”

He was similarly dismissive when asked if he enjoyed being the bad boy.

“I know you’ve got to have a black hat and a white hat but guys, come on,” he said.

“What do I do that makes me a bad boy? Do I talk bad about anybody, do I give bad gestures, don’t I shake every athlete’s hand, don’t I congratulate them, wish everybody good luck? That don’t sound like a bad boy to me.

“Usain is a great athlete and a great man and I’m just happy to be here lining up shoulder to shoulder with him. He leaves a huge void in the sport.”