Ryan Crouser retained his shot put world title on Saturday despite being affected by blood clots in a lower leg taking gold in style with a championship record throw of 23.51 metres.
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World Athletics president Sebastian Coe had singled out the shot as the event to savour at the championships and Crouser did not let him down, producing a totally dominant performance.
Crouser donned his trademark stetson hat after celebrating his victory.
"It's been a terrible preparation, the last 20 days have been very tough," he said, though sporting a beaming smile.
The 30-year-old American, the two-time Olympic champion and world record holder, set the pace from the first throw and turned the screw on his rivals with a then-championship record effort of 22.98 metres in the second round.
An almighty battle took place for the minor medals with places swapping on a regular basis. Two-time world champion Joe Kovacs at one point slipped to seventh but then moved back to bronze with a mighty effort of 22.12m in the penultimate round.
The surprise package was Italy's Leonardo Fabbri who took silver with a personal best of 22.34m.
His performance meant no medal for New Zealand's 2017 world champion Tom Walsh, who had to make do with fourth with a best effort of 22.05.