Five unnamed players have withdrawn from French Open qualifying after two players and a coach tested positive for coronavirus.
Qualifying for the tournament at Roland Garros will start on Monday.
A statement read: "The Roland-Garros tournament directors can confirm two players in the qualifying tournament have tested positive for Covid-19.
"Three others have confirmed close contact with a coach who has tested positive for Covid-19."
It added: "In line with tournament health protocols, the five players will not compete in the qualifying tournament which begins tomorrow [Monday] and will self-isolate for a period of seven days.
"In total, some 900 tests have been carried out since Thursday, 17 September."