Bolt undergoes treatment

Champ bothered by hamstring discomfort

Olympic sprint champion Usain Bolt received treatment for "slight discomfort" in his hamstring following his 100 metres victory in Saturday's Cayman Invitational, his coach Glen Mills said on Monday.

Bolt, who is scheduled to run the 100M at the Golden Spike IAAF World Challenge in Ostrava, Czech Republic on Friday, travelled to Germany after posting 10.05 seconds in his season opener and had treatment there, said Mills.

Bolt is targeting an unprecedented Olympic threepeat at the Rio de Janeiro Games in August where he will be defending his 100, 200 and 4x100 relay titles.

"I think he has a slight discomfort in his hamstring, so he didn't bother pushing it after that, but he'll be alright," Mills told Jamaican radio station Hitz 92fm. "He's in Germany as we speak and the doctors say he will be fine."

Bolt, the 100 and 200 world record holder, got off to a moderate start in his season-opening race before stepping away from the field in the last 60 metres and cruising to the tape.

Speaking after Saturday's race, Bolt 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 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."

Mills,  who has guided Bolt to six gold medals at the last two Olympics said : "If you saw the race, you could see he was grimacing a bit.”

Mills added: "(I) didn't think he was under any pressure, but he was just grimacing because he wanted to really push it, but he was just grimacing that he couldn't get the chance to do so."