Paris St Germain have closed their training facility as a precautionary measure after detecting several cases of COVID-19, the French Ligue 1 club said on Wednesday.
The training centre will be closed until Monday and another screening session will be carried out on Friday.
The men's team are unaffected and face Lille in the French Cup last 16 later on Wednesday, but the women's team were unable to play their game against Sparta Prague in the Champions League.
PSG lead 5-0 from the first leg of the last-16 tie but would advance on aggregate if the match is forfeited, which would be considered a 3-0 loss.
"Given the mandatory quarantine of the Paris Saint-Germain team... the UEFA Champions League match between Sparta Prague and Paris Saint-Germain, initially scheduled for Wednesday March 17, 2021 in Chomutov, cannot be held," UEFA said.
"The case is submitted to the UEFA Ethics and Disciplinary Control Body, which will take a decision shortly."
Coventry City ended their 25-year absence from the Premier League with a 1-1 draw at Blackburn Rovers, securing promotion from the Championship with three games to spare on Friday.
Carlos Alcaraz will miss the Madrid Open for the second consecutive year after withdrawing on Friday with a wrist injury, dealing another blow to the world number two's clay court preparations ahead of his French Open title defence.
Novak Djokovic is still working through the injury problems that forced him to miss recent tournaments in Miami and Monte Carlo and said on Friday that he will not feature at next week's Madrid Open, one of the last stops before the French Open.
Mumbai Indians head coach Mahela Jayawardene has defended Jasprit Bumrah after the struggling pace spearhead went a fifth Indian Premier League match without a wicket in Thursday's seven-wicket defeat by Punjab Kings.
Iranian women's football players Fatemeh Pasandideh and Atefeh Ramezanisadeh thanked the Australian government on Friday for offering a "safe haven" and said they wished to resume their sporting careers after rebuilding their lives.
Dubai Police, in collaboration with the UAE Ministry of Interior, have arrested an Irish fugitive accused of involvement in an organised criminal group linked to international crimes in his home country.
UAE President His Highness Sheikh Mohamed bin Zayed Al Nahyan has met with His Highness Sheikh Hamad bin Mohammed Al Sharqi, Supreme Council Member and Ruler of Fujairah, to discuss national priorities and the country’s continued development.