UCI calls on World Anti-Doping Agency to 'take a position' on use of carbon monoxide inhalation

Tadej Pogačar and Jonas Vingegaard have both used carbon monoxide rebreathers in the past as part of testing at altitude camp.

The UCI has asked the World Anti-Doping Agency (WADA) to take a position on the use of carbon monoxide (CO) by professional cycling teams after it came to light during the Tour de France that some sides were using it to optimise altitude training.

At the governing body's annual Seminar in Nice, France, the UCI also warned teams about the dangers of carbon monoxide inhalation and requested riders and teams not to use "repeated inhalation" of the deadly gas.