Usain Bolt has given credit to his supporters for calming his nerves before his record-breaking dash in the men's 100m Olympic final.
The Jamaican sprinter, who with a time of 9.63 seconds beat Jamaican 100m world champion Yohan Blake and Athens gold medallist Justin Gatlin of the USA on his way to a fourth gold medal and a new Olympic record, said his anxieties were calmed by the 80,000 people on hand to see him race.
"I was slightly nervous before I came out, but after that cheer that I got when they were introducing me, all those jitters went away. The crowd plays a very important part in the race for me."
Bolt said he found it more difficult to defend his title than it was to earn it.
"Hands down, it's harder than anything else," he admitted. "At the trials, when Yohan Blake beat me twice, it opened my eyes.