Former Jamaica team-mate Nesta Carter failed a re-test from the 2008 Games in Beijing
Athletics superstar Usain Bolt says having to hand back one of his Olympic gold medals is "rough" after a former Jamaica teammate was found guilty of doping.
Nesta Carter failed a re-test from the 2008 Games in Beijing.
Both athletes were part of the Jamaican team that competed in the 4x100 metres relay.
Bolt has still got eight other Olympic titles despite having to relinquish one.
Three of those are 100 metres golds from Beijing, London 2012 and Rio 2016
He also won the 200 metres gold at all three Games and was part of winning efforts in the 4x100 metres relay in the latter two Olympics.
"It's rough that I have to give back one of my medals and I already gave it back because it was of course required by the IOC," he is quoted as saying.
"I'm not happy about it but it's just one of those things that happen in life. I can't allow that to deter me from my focus this season, so I am focused but I am not pleased."
The 100 metre world record holder added that: "I think I've still accomplished a lot, it hasn't changed what I have done throughout my career."