Serena Williams returned to the world's top 30 in the WTA rankings released on Monday after finishing as Wimbledon runner-up.
The husband of Serena Williams admitted Sunday that he feared the tennis superstar would die after giving birth to their daughter last year.
Serena Williams will face Angelique Kerber on Saturday hoping to win an eighth Wimbledon singles title.
Serbia's Aleksandra Krunic made further progress at the Japan Women's Open on Wednesday by eliminating seventh seed Alison Riske.
World number one Angelique Kerber was dumped out of the French Open on Sunday, going down 6-2 6-2 in a first-round defeat to Russia's Ekaterina Makarova.