On the back of her early Rome exit, Serena is set to continue her clay preparation at Emilia Romagna Open in Parma, Italy.
Several other tennis players, like Rafael Nadal, Serena Williams, Naomi Osaka, and Kei Nishikori are also unsure of their participation.
The government is likely to extend Tokyo's emergency and put the same order on northern Hokkaido, which is set to host the marathon.
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.
Nishikori is currently participating in the Italian Open and expressed his opinion after winning a match in the first round of the tournament.
Serena Williams last played a competitive tennis match during the Australian Open, losing the semi-final to Naomi Osaka.
Ashleigh Barty defended her Miami Open crown successfully as Bianca Andreescu retired in the second set due to injury.
The renowned tennis players earn millions through participation in tournaments as well as endorsing major brands.
The serve in the game of tennis is one of the most important aspects and a fast, accurate serve is a great asset to a player.
Below is the list of the female tennis players who have been massively successful in Grand Slam tournaments.