The Spaniard is feeling better after a procedure to quell nerve pain in his left foot.
The American wasn't shy about speaking her mind on a topic she feels strongly about.
Six-time Wimbledon winner Novak Djokovic is even more inspired to defend his title because of what may follow.
The Scot is sanguine ahead of his 14th Wimbledon appearance.
Novak Djokovic kicks off festivities on Centre Court, with Emma Raducanu and Andy Murray to follow.
The American's withdrawal allows Coco Vandeweghe entry as a lucky loser.
"The IOC has completely punted," Hall of Famer Martina Navratilova said.