Naomi Osaka struggled to build upon an early edge in her matchup with Victoria Mboko in the 2025 Montreal Open Final.

Osaka has made some progress since returning in last year's Australian Open. She won two matches in both the Australian Open and Wimbledon this year, has earned $725,727 in prize money so far and reached the No. 49 spot in the WTA rankings, with a higher ranking likely on the way by making the final.

Four-time major champion Naomi Osaka didn't just lose the National Bank Open final on Thursday night, she received backlash for questionable comments she made after the match. Despite winning the opening set,