Karsten Warholm becomes world champion

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm celebrates his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm reacts to his 400m hurdles gold at the 2017 World Championships in London

Karsten Warholm wins the 400m hurdles title at the 2017 World Championships in London

Karsten Warholm reacts to winning the 400m hurdles at the 2017 World Championships in London

Karsten Warholm reacts to winning the 400m hurdles at the 2017 World Championships in London

Karsten Warholm reacts to winning the 400m hurdles at the 2017 World Championships in London