Australian cyclist Chris Harper has withdrawn from the Tour de France before the 16th stage due to COVID-19 symptoms, joining other riders like Juan Ayuso, Tom Pidcock, and Maxim Van Gils who have also exited the race for similar reasons. Tour de France organizers have implemented stricter protective measures, such as mandatory mask-wearing, for individuals in contact with riders and team staff amidst the rising cases. Harper's absence affects Team Jayco Alula's strategy, initially aiming for victories with Dylan Groenewegen and Simon Yates, with Harper playing a crucial role as a climber in supporting Yates' GC aspirations.