Hannah Finchamp has withdrawn from the Mountain Bike World Championships after a positive COVID-19 test ©USA Cycling

Two American cyclists have withdrawn from this week's International Cycling Union (UCI) Mountain Bike World Championships in Austria after testing positive for COVID-19.

USA Cycling announced both Hannah Finchamp and Pieter Wheymeyer tested positive for coronavirus and are now self-isolating.

The governing body is working with the Austrian Health Organisation to trace those who came into close contact with the two cyclists. 

Finchamp had tested positive for COVID-19 before last week's UCI Mountain Bike World Cup event in Nove Mesto, before seemingly breaking guidelines to travel to Prague to get a second positive test, as reported by Cycling News.  

Despite the disruption caused by the pandemic, the UCI is holding a full schedule of events at the Mountain Bike World Championships in Leogang-Saalfelden, including races in downhill, cross-country and e-mountain bike. 

Competition starts tomorrow with the men and women's e-mountain bike events, and the team cross-country competition. 

Qualifying from the downhill is set to begin on Thursday (October 8) and continue on Friday (October 9). 

Frenchman Loic Bruni is set to defend his downhill title at the UCI Mountain Bike World Championships ©Getty Images
Frenchman Loic Bruni is set to defend his downhill title at the UCI Mountain Bike World Championships ©Getty Images

The men and women's cross-country contests are then scheduled for Saturday (October 10), with the downhill reaching its conclusion on Sunday (October 11). 

Junior and under-23 competitions are also set to be held alongside the main events. 

Despite the threat of the pandemic, the Mountain Bike World Championships boasts a star-studded line up. 

France's Pauline Ferrand-Prévot and Myriam Nicole are expected to defend their titles in the women's cross-country and downhill respectively, with compatriot Loic Bruni set to defend his men's downhill title. 

Switzerland's reigning cross-country world champion Nino Schurter is also expected to compete. 

Two-time American Olympian Lea Davison has opted to miss this year's competition, however, instead choosing to focus on preparations for next year's Olympics in Tokyo.