Jamaican world record holder Usain Bolt will return to Rio de Janeiro next month to run a special 100m on the beach, he said on his website on Sunday.
The six-times Olympic gold medallist added the 17 August "Mano a Mano" 100m on Copacabana Beach to three previously announced races in what he said was his finalised schedule for 2014.
Bolt streaked to victory in a 150m race at the famous beach in March 2013 on a track specially built for the event.
He has delayed opening his season this year because of a foot injury and will start with a 4x100 metres relay with his Jamaican team-mates at the Commonwealth Games in Glasgow on 1-2 August.
The eight-times world champion will also run 100m races in Warsaw, Poland on 23 August and at the Zurich Diamond League meeting on 28 August.