Warholm, the world-record holder, appeared to be in control much of the race. But it was Dos Santos who was able to find another gear in the final straight away.
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Alison dos Santos upset Karsten Warholm in the 400-meter hurdles
Warholm, the world-record holder, appeared to be in control much of the race. But it was Dos Santos who was able to find another gear in the final straight away.