Jamaican sprint star Usain Bolt overcame a "very bad" start to successfully kick off the defence of his world 100m title on Friday, but American arch- rival Justin Gatlin was jeered by the British public.
Bolt, seeking a 12th world title in his swansong season, found himself fifth halfway into the blue riband event before putting on the afterburners to win his heat in 10.07 seconds.
"I stumbled a bit coming out of blocks, I'm not fond of these blocks," he told the BBC. "I have to get this together. It's shaky because when I did the warm up it (the blocks) pushed back. It's not what I am used to." Bolt v Gatlin at the 2012 Olympics at the same London stadium had been billed as 'good against evil', given the American's doping-tainted past, and so it again proved.Gatlin, the last man to beat Bolt over 100m -- by a hundredth of a second in Rome in 2013 -- was met with loud booing and jeering when shown on the big screen.