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Italy's Jacobs wins shock 100m gold
Italy's Lamont Marcell Jacobs claims a shock gold in the Olympic 100m final, after Great Britain's Zharnel Hughes is disqualified for a false start.
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Jacobs, who only switched away from long jump in 2018, streaked clear to win in 9.80 seconds, 0.04 clear of American Fred Kerley.
Canada's Andre de Grasse won a second successive Olympic bronze in third.
World champion Christian Coleman and Trayvon Bromell, the world's fastest in 2021, were both absent from the final.
Coleman, banned for whereabouts failures after missing three drugs tests, and Bromell, eliminated in the semi-finals, were joined on the sidelines by the long-retired defending champion Usain Bolt.
Few would have picked Jacobs, who was born in Texas to an American father but moved to his mother's Italian homeland before his first birthday, as the Jamaican great's successor.
Jacobs only broke the 10-second barrier for the first time in May.
But the European indoor 60m champion carried the momentum from his fast start all the way to the line to register a time faster than Bolt's winning mark in Rio.