The Spaniard completed his job in straight sets to reach the final in Rome for the 12th time.
Several other tennis players, like Rafael Nadal, Serena Williams, Naomi Osaka, and Kei Nishikori are also unsure of their participation.
Rafael Nadal ended a run of three straight losses to Alexander Zverev with a convincing 6-3, 6-4 win to reach the Italian Open semifinals.
The government is likely to extend Tokyo's emergency and put the same order on northern Hokkaido, which is set to host the marathon.
Rafael Nadal won his first French Open in 2005 and established a run that would see him win the title 13 times.
The Spaniard also came from a set down against the 22-year-old Canadian to secure a spot in the last eight.
Phillippe Chatrier is one of the best administrators in the history of French Tennis.
One of the best ever to play the game, Nadal's statement will have a rippling effect on the tennis world and on the Olympics' organizers.
Roger Federer, Rafael Nadal and Novak Djokovic have been dominating tennis for a while now, making it harder for other players to win the Grand Slams.
The 19-year-old Italian tennis player needed only 90 minutes to beat the Frenchman in straight sets.