Alison dos Santos sets 400m hurdles world record with 45.80 seconds in Zurich

Brazilian hurdler Alison dos Santos set a new world record in the 400m hurdles at the Diamond League meeting in Zurich, clocking 45.80 seconds. The previous record was held by Norway's Karsten Warholm. Dos Santos had beaten Warholm just days earlier at the Chorzów Diamond League meet.