Athletics: Bolt backs strong action over Russia's doping

CAS on Thursday rejected an appeal by 67 Russian athletes seeking to overturn an IAAF doping ban on them competing at the Rio Olympics.

A decision on banning Russia from the Rio Games, which start on August 5, could come this weekend and Jamaican star Bolt, a six-time Olympic champion, has no doubt a strong stance is the right response as athletics tries to clean up its act.

"This will scare a lot of people, or send a strong message that the sport is serious about cleaning up," Bolt told reporters in London on Thursday.

"It's sad, but rules are rules. I don't make the rules, I don't make the decisions. I just have to go along with it. If you feel like banning the whole team is the right action, then I'm all for it."

Meanwhile, Bolt insists he is ready for his first 200 metres of the season in the Anniversary Games in London on Friday as he tests his fitness ahead of the Rio Olympics

Bolt faces a key stage of his fitness recovery when he races for the first time since pulling out of the Jamaican trials with a hamstring strain.

"I'm good, I'm feeling good, been training good now, I'm happy with where I am," he said.

"My hamstring is good, I have no issue right now. I know I'm in good shape."

Bolt's outing at the Olympic Stadium, the scene of his three Olympic gold medal wins at London 2012 in the 100m, 200m and sprint relay, will be his last before the Games.

The 29-year-old has set his sights on an unprecedented 'triple triple' of Olympic crowns in what will likely be his last Games.

"I'll definitely be there, I'm excited to go," Bolt said of the Olympics, which get underway in Brazil on August 5.

"This is where history is going to be made, I'm excited to put on a show for the entire world to see. This is my final Olympics, it's a big one."

Despite doubters questioning his fitness, Bolt points to his triumph at last year's World Championships in Beijing when he trailed Justin Gatlin in the 100m and 200m world rankings, only to leave China with the complete set of gold medals.

"I'm definitely a tough competitor," Bolt said. "Last year Gatlin was just not ready, it was the first time he was being chased.

"It was hard for him, but this year is not going to be the same, I am in much better shape, so I won't leave it to the last second."

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