Kingston: Jamaican sprint superstar Usain Bolt is undergoing treatment in Germany for what his coach described as an “aggravated hamstring injury” following his first race of the season, local radio reported on Monday.

Glen Mills, Bolt’s coach, said the two-time Olympic 100m and 200m champion had tweaked the hamstring during Saturday’s Cayman Invitational meeting.

Bolt clocked a modest 10.05sec in the 100m, winning ahead of American Dentarius Locke and training partner Kemar Bailey-Cole.

“If you noticed, in the race, he was grimacing towards the end,” Mills told Jamaica’s Hitz 92fm radio station on Monday.

Bolt’s injury is unlikely to prevent the world record holder from racing in Friday’s meeting in Ostrava, the Czech Republic, Mills said.

Bolt is being treated by Hans-Wilhelm Muller-Wohlfahrt, the Munich-based doctor who has treated the athlete for years.

Speaking after Saturday’s race, Bolt, who is targeting his third consecutive victories in the 100m, 200m and 4x100m at August’s Olympics, said he was relieved to have emerged from his season-opening race unscathed.

“It wasn’t the best, but as long as I come out injury free, that’s the key thing,” Bolt had said.

“I didn’t feel as smooth as I wanted to, but as I always say, it’s hard to just come into your first race and do extra well.

“I am never worried. I’ve been in worse situations. It’s just race rusty. I can tell. I could feel the difference from when you are flying from when you are not.”

Rio’s “unique spirit” and warm hospitality will ensure that the Rio 2016 Olympic Games are a success, International Association of Athletics Federations (IAAF) president Sebastian Coe said in Rio.

Coe is currently in Rio to observe the Rio 2016 track and field test event at the Olympic stadium, which ended on Monday, reports Xinhua.

“I have spent a lot of time in Rio and this city has a unique spirit,” Coe said during a question-and-answer session with Rio 2016 staff on Monday.

“The great advantage you have – and me and my team from the IAAF saw this yesterday morning as we stood looking out onto the beach before heading off to work – we all looked at each other and said ‘this is the advantage’.

“This is what you have and don’t for one moment overlook the unique spirit of this city, it’s an extraordinary city and it will absorb the Games. I think people will be surprised by the spirit these Games will generate.”

Coe, who was president of the London 2012 Olympic organising committee, added: “We (London) were seen as a city that reached out, and I’m absolutely convinced that’s what Rio will do. People who are here will feel very welcome and very wanted and that’s a priceless asset to have when you’re delivering a Games.”