World No 1 Novak Djokovic will have a scan on his injured knee on Tuesday before deciding whether he needs to withdraw from the French Open quarter-finals.
The 30-year-old had been due to return from three months out with an ankle injury.
There are two blockbuster matches in the women’s singles before Carlos Alcaraz takes on Stefanos Tsitsipas and Jannik Sinner meets Grigor Dimitrov