Fred Kerley on fire as Marcell Jacobs scrapes into 100m semifinals

Fred Kerley's bid to retain his world 100m title remained on track Saturday as the American kept his nerve to progress to the semi-finals at the World Athletics Championships while Olympic champion Marcell Jacobs was given an almighty scare.

Kerley had to contend with six starts at a rowdy National Athletics centre before clocking 9.99sec for a comfortable second place behind heat winner Oblique Seville, the Jamaican winning in a personal best of 9.86 at Budapest, Hungary.

"I am very surprised by that. I never expected it in the first round. But running that time gives me great confidence for the next rounds," said Seville.

"Being able to stay with Fred Kerley in the lane beside me was great. That was something I will carry to the semi-finals.

"I think we can give those Americans a scare. The Jamaicans are coming, definitely," he added, with compatriots Rohan Watson and Ryiem Forde also qualifying.

Italy's Jacobs, who is yet to race Kerley since beating the American to gold in Tokyo in 2021, left it late to nab the third automatic qualifying spot in his heat in 10.15sec.

Jacobs has only raced outdoors once this season, finishing seventh in 10.21sec at the Paris Diamond League meet last month and the Italian looked justifiably ring rusty.

Just the top three from each of the seven heats and the next three fastest progressed to the three semi-finals set to run from 1435 GMT on Sunday, with the final at 1710.

Kerley's teammate Noah Lyles, in 9.95sec, edged Kenya's in-form Commonwealth champion Ferdinand Omanyala in his heat of the blue riband event of track and field which is arguably as open as it has been in 20 years.

"I'm going to run sub-10 every round and get faster and faster," vowed Lyles, who is also seeking a third world 200m title.

"The final will be won in whatever time I run. I've said I can run 9.65 and I don't think anyone else can do it. But if they think they can then I'll be there on the line to beat them to it."

Twice world under-20 champion Letsile Tebogo of Botswana was another heat winner.