Usain Bolt aims to achieve greatness with a third Olympic triple gold-medal haul at the 2016 Rio de Janeiro Games.
"To actually go to Rio and win again would be a feat in itself," Bolt said on Wednesday, speaking ahead of the Weltklasse Diamond League meeting.
The Jamaican will run in the 100 metres on Thursday after a world championship sweep in the 100, 200 and 4x100 relay in Moscow, where he talked of working hard to attain "the greatness thing."
He completed the same triple at the past two Olympics and is focused on repeating in Rio.
"For me, the key thing is just to go to defend my titles, and that's my focus," Bolt said. "It would be the first time anybody has ever won three times in a row."
Bolt became the most decorated athlete in world championships history this month, with his career tally of eight golds and two silvers lifting him above American great Carl Lewis.
Three more golds for Bolt in Rio would still leave him trailing Lewis' Olympic track and field record of nine golds and one silver.
"I won't be adding a fourth event in Rio, for sure," said the 27-year-old Bolt, whose 34th birthday could fall during the 2020 Summer Games.
Bolt suggested he was capable of running in the 9.70s at Weltklasse, where a warm, still evening is forecast.
"I have gotten a lot of rest," said Bolt, who last year in cool, wet conditions set a Weltklasse meet record of 19.66 in the 200. "This track is always a fast track and I've run some fast times here."
He ran a season's-best 9.77 in Moscow and rivals on Thursday include worlds runner-up Justin Gatlin of the United States and Jamaican bronze medallist Nesta Carter.
