Masai Russell breaks hurdles world record

American hurdler and Olympic champion Masai Russell has broken Tobi Amusan's world record in the women's 100m hurdles at the Diamond League meet in Zurich.

Russell's performance ends the Nigerian's four-year reign in the event.

The American's time was a significant improvement on the previous record, marking a historic moment in track and field.

The achievement solidifies Russell's status as the world's premier women's hurdler.