Botswana’s Letsile Tebogo set the fastest time in the men’s Olympic 200 metres semi-finals on Wednesday, proving his intent to upset American Noah Lyles’ quest for a sprint double.
Tebogo, last year's world championship bronze medallist, overtook the American 100 metres champion on the bend and cruised the rest of the way unchallenged to finish in 19.96 seconds. The…