Naomi Osaka highlights difference in working with new coach Tomasz Wiktorowski after split from Patrick Mouratoglou

After a rough couple of months, Naomi Osaka appears to have rediscovered her form at the 2025 Canadian Open. The Japanese superstar recently part ways with renown coach Patrick Mouratoglou, but seems to have found new life under Tomasz Wiktorowski, whom she began working with prior to the WTA 1000 event.

Osaka has been in devastating form in Montreal, with the former World No.1 dropping just one set en route to the quarterfinals. The two-time US Open champion cruised past Anastasija Sevastova in their round of 16 match, scoring a 6-1 6-0 victory over the Latvian in just under 50 minutes.

The four-time Grand Slam champion began working with Mouratoglou in September of last year, but their partnership has not yielded the desired results. Although Osaka did win a WTA 125K event in Saint Malo before Roland Garros, she has underperformed at tour-level events.

Nonetheless, it came as a surprise when Osaka took to social media last week to announce she and Mouratoglou would be parting ways. The Japanese star would then reveal she was working with Polish coach Tomasz Wiktorowski, albeit on a trial basis.

Her fitness has improved under her new coach, says Osaka

Having coached former World No.1 Iga Swiatek in the past, Wiktorowski is known for his stern disposition on and off the court. However, Osaka claims to enjoy working with the Polish tactician, and admitted she has seen vast improvements in their short time together.

"Honestly, I think for me, what’s working well is I am very confident in my fitness," revealed Japanese superstar. "I’m really comfortable just getting balls back now, and I really enjoy Tomasz. I don’t know if to say his name is ‘Thomas’ or ‘Tomasz.’ I’m so sorry.
“But I enjoy his coaching style. He’s very direct and to the point. For someone like me, who my thoughts scatter around often, it’s very helpful."

With her confidence the highest it's been in months, Osaka will face a stern test in the quarterfinals at the Canadian Open. The 27-year old will face Elina Svitolina in the final eight, after the Ukrainian brushed past 2025 Wimbledon runner-up Amanda Anisimova in their round of 16 encounter.