Naomi Osaka has started a coaching trial with Tomasz Wiktorowski, former coach of Iga Świątek and Agnieszka Radwańska, as she prepares for the Canadian Open. The news was shared by tennis journalist Ben Rothenberg and confirmed by additional sources.
This development follows Osaka’s recent split with Patrick Mouratoglou, which concluded a partnership lasting around 10 months.
Osaka, currently ranked No. 49, has been seeking to improve her results since her return from maternity leave. She has recorded some progress, including a WTA 125 title in Saint-Malo and reaching the final in Auckland.
Despite this success, she has also suffered early exits at major tournaments such as the French Open, Wimbledon, and Washington. The addition of a coach with Wiktorowski’s experience and track record could offer needed stability and tactical direction.
Tomasz Wiktorowski en Route to Montreal for a Coaching Trial for Naomi Osaka
According to Polish media, Wiktorowski is expected to replace Mouratoglou as Osaka’s head coach following their sudden split just days ago. A website reported that the Polish coach will join Osaka in Montreal for the Canadian Open, and Rothernberg confirmed this news on X.
Some news confirmed via @FortyDeuceTwits:
Tomasz Wiktorowski, former coach of Iga Swiatek and Aga Radwanska, is en route to Montreal for a coaching trial for Naomi Osaka.https://t.co/fmI4cxcpZu
— Ben Rothenberg (@BenRothenberg) July 28, 2025
Wiktorowski is widely recognized for his achievements with prominent WTA players. He guided Radwańska to a Wimbledon final and a career-high ranking of world No. 2 and joined Świątek at the end of 2021.
Under his guidance, the Pole captured 19 titles, four majors, and the title of world No. 1. He left Świątek’s team last October in what both sides called a mutual and respectful split.
Osaka’s playing style, which includes aggressive baseline shots and powerful serves, may benefit from Wiktorowski’s methodical coaching. Recent statistics indicate some inconsistency in Osaka’s serve, particularly regarding first-serve percentage.
Wiktorowski’s history of optimizing serve and return for his players could be a practical fit for Osaka’s current needs.
The coaching trial is set to begin at the Canadian Open in Montreal. In the first round, Osaka defeated Canadian Wild Card Ariana Arseneault 6-4, 6-2. In the second round, she will face No. 13 seed Liudmila Samsonova.
The trial with Wiktorowski may extend through this event, potentially continuing into subsequent tournaments should both parties agree.
Wiktorowski has not held a regular coaching position since finishing with Świątek last October, while Osaka is looking to re-establish herself among the top players ahead of the US Open. The trial’s outcome will likely depend on immediate results and the development of working chemistry between the coach and the player.
