In Group B2's other match, Scotland won 2-1 against the Czech Republic, who had had to call up an entirely new squad for the match owing to COVID-19 quarantine regulations.
Djokovic's exit means there will be a first-time Grand Slam champion in the men's draw.
Players will be tested "upon their arrival and will receive their accreditation as soon as the first negative test is returned," Forget said.
The Brazilian claimed that no one had informed PSG of their player having contracted COVID-19.
"I personally feel like it's an obligation to qualify," the 58-year-old Argentinian told reporters. "I play to win and I don't take losing particularly well."
Peters, 26, who is riding in his maiden Tour de France, produced a brilliant long-range solo breakaway to record his first stage win, leading Toms Skujins and Carlos Verona, who arrived at the same time, by 47 seconds.
Havertz joined Leverkusen at the age of 11 in 2010 and made his debut for the senior team in 2016. He made a total of 118 Bundesliga appearances with 36 goals and 25 assists.
The girls had irregular training time during last semester because of the COVID-19 pandemic.
Top-ranked Belgium secured a 2-0 win in Denmark, while Raheem Sterling converted a penalty in second-half stoppage time to give England a 1-0 victory in Iceland. Enditem
This year, world number four Kenin counts herself among the top players, but the challenge won't get any easier as Tunisia's Ons Jabeur, one of the most in-form players of 2020, awaits in the next round.
"As for the disqualification, I need to go back within and work on my disappointment and turn this all into a lesson for my growth and evolution as a player and human being."