Serena said her leg injury from Wimbledon is still bothering her while Venus did not disclose a reason. They join Federer and Djokovic as the latest stars to withdraw.
Novak Djokovic plans to make his return for the U.S. Open on Aug. 30 in New York, where he will look to win his 21st career major and a calendar Grand Slam.
Should Novak Djokovic try for the rarest of feats in tennis and compete at the Tokyo Olympics? Or should his focus be on the calendar Grand Slam at the U.S. Open?
Final reflections from the year's third major tournament, where Novak Djokovic closed in on the calendar Grand Slam and Ashleigh Barty won her second major singles title.