Kemp had been the deputy chief operating officer at the Montreal-based organisation since January 2020.

He announced the promotion on his LinkedIn page.

"I’m pleased to share that I’m starting a new position as chief operating officer at the World Anti-Doping Agency," Kemp wrote.

The Canadian has been at WADA since June 2006 after joining them as its testing manger.

He has also worked in standards and harmonisation and also on ADAMS, the anti-doping administration and management system which is designed to coordinate WADA's activities.

Before joining WADA, Kemp worked at the Canadian Centre for Ethics in Sport where his roles included operations manager.

Donzé had served as WADA's chief operating officer since 2016 but died at the age of 50 following a short illness.

Upon his death, the organisation’s director general Olivier Niggli had described Donzé as the "life and soul of WADA."

Among those to react to Kemp's new role was the two-time Olympic 400 metres hurdles gold medallist Edwin Moses.

"Wow, congratulations Stuart," Moses, the chairman emeritus of the United States Anti-Doping Agency, wrote.

"Best wishes to you."