Usain Bolt regained the 100m title with a time of 9.77 seconds at the World Athletics Championships in Moscow.

The United States' Justin Gatlin ran 9.85 seconds to claim silver, whilst Nesta Carter of Jamiaca clocked 9.95 for bronze.

Bolt, who lost the title two years ago in South Korea after being disqualified with a false start in the final, defied the weather to run his best time of the year on a sodden track.

The weather seemingly put off the crowds too - a far from sell-out crowd witnessed Bolt reclaim his title, though the double Olympic champion was determined to enjoy the occasion.

"It was not a revenge for Daegu, I just came here to win this title," said Bolt.

"I wanted to do a better time, but was not able to because of the weather. This is just one of those days - not 'singing in the rain', but 'running in the rain'.

"It was an average start and that, for me, is a great start. Around great starters like Gatlin and Carter I knew I had to get it right.

"I knew Gatlin was not going to crack under pressure so I had to stay focused and run to the line.

"I said to Gatlin I always appreciate competing with him because he always comes out and gives it his best."

The world record holder was slow out the blocks - understandably so given his previous disqualification - but Bolt hit top form during his renowned transition phase before cruising past Gatlin and Carter around the 50m mark.

Bolt went on to comfortably finish ahead of his closest rivals, whilst Great Britain's James Dasaolu came in eight spot having run 10.21.

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