Osaka, 27, gave start to daughter Shai in July 2023 and returned to the WTA Tour six months later.
The four-time main winner misplaced within the first spherical on her Slam return on the Australian Open final yr, earlier than exiting within the second spherical at Roland Garros, Wimbledon and Flushing Meadows.
However the former world primary is off to a powerful begin in 2025, beating France’s Caroline Garcia in three units in her opening match earlier than overcoming twentieth seed Muchova in just below two hours.
“Truthfully, it took all the things,” Osaka mentioned of her comeback victory on Wednesday.
“I felt like I left all the things I had on the court docket. Simply to be again on these courts… it actually makes my complete yr.”
Osaka will play Belinda Bencic within the subsequent spherical, with the Canadian herself enjoying her first Grand Slam since giving start to daughter Bella in April 2024.
A 3rd straight victory would ship Osaka into the fourth spherical at a serious for the primary time since she gained the Australian Open in 2021.