Watch the US switch breakdown in the player above.
de Grasse saw Canada win in 37.50 and South Africa were second in 37.57 with Akani Simbine in the final stretch. Great Britain took bronze in 37.61 in the even final.
Olympics in Paris 2024
Here, David Åhman’s sister Fanny gets happy after the semi-final
Truls Möregårdh’s tribute after the Olympic final: “Damn how good he is”
Others on the Canadian gold team celebrating with the ladies who finished sixth in their final a quarter of an hour earlier were Aaron Brown, Jerome Blake and Brendon Rodney.
It was in the first shift that everything went wrong for the favorite tipped USA. Christian Coleman ran into Kenneth Bednarek who went too early and then had to wait for the stick. In the chaos, the stick was left outside the exchange zone and the USA was dished out after finishing seventh.
The problems for the USA started earlier when 100m winner Noah Lyles dropped out of the Games after running the 200m final with covid yesterday.