Eleven medals for Felix as stellar US team take 4x400m glory

Alongside Felix they went for Sydney McLaughlin and Dalilah Muhammad, first and second in the 400m hurdles and both inside the old world record, and Mu Athing, winner of the 800 metres.

The United States powered to their seventh successive victory in the women’s 4x400m relay on Saturday as Allyson Felix won gold in the event for the fourth time to extend her Olympic medal haul to a remarkable 11.