Naomi debuted her first of two sensational US overt outfits during her advance match on Tuesday .

On Tuesday, Japan’sNaomi Osakabeat Latvia’s Jeļena Ostapenko in the first round of the US Open.

It’s a big deal for two reasons: Osaka, who is currentlyrankedNo. 88, won against a Top 10 player for the first time in over four years. Ostapenko isrankedNo. 10.

Additionally, Osaka, a 2018 and 2020 US Open champion, returned to theNew YorkCity tournament after taking last year off. In July 2023, shegave birth to her first child, a daughter with rapper Cordae.

Notably, Osaka is marking her US Open comeback with two matching custom outfits: one for daytime play that she debuted Tuesday and one for nighttime matches. Both are meant to honor her Japanese heritage.

Osaka stepped onto the court in a green competition dress, white jacket, sneakers, and Bose headphones, all adorned with prominent bows. She even practiced in the full look, sans the headphones of course.

The looks are a collaboration between Nike and Japanese designerYoon Ahn. Osaka opened up about the inspiration for the joyous look in an interview with theNew York Timesearlier this week.

“The inspiration for me was definitely Japanese, like Harajuku,” she told the publication. “I remember one of the first times I went to Japan, I saw so many frills and so many bows.”

While Osaka doesn’t consider her competition outfits “risky,” noting she grew up onSerena Williams’s groundbreaking competition style, the athlete does see them as akin to a “super-suit” that gives her confidence and can even be “a little intimidating” for her opponent.

“Especially with this outfit. It’s so big, maybe it’ll create a bigger presence,” she said.

As for the color choices, she associates green with “peace and serenity.”

Should Osaka play a night match at the US Open, she’ll debut the black version of her outfit. There’s a reason she picked black.

“For me, black is strength,” she told the publication. “For me, that’s the super-suit color. I feel a little bit likeBlack Panther.” New York Times debuted photos of Osaka in her black competition outfit, which you can seehere.

Naomi will take on Russia’s Karolína Muchová in the second round on Thursday. A match time has not yet been announced.

Naomi Osaka on a tennis court, holding a racket up and covering her mouth with her other hand, showing an emotional reaction

Naomi Osaka, wearing athletic tennis attire, clenches her fist and smiles towards the sky on a tennis court

Tennis player Naomi Osaka waves to the crowd while holding her racket on a tennis court, with cheering spectators and camera crew in the background

Naomi Osaka waves while wearing a sporty outfit with a visor and carrying Yonex tennis bags

Naomi Osaka serves on a tennis court, wearing a white top with a large green bow and a layered green skirt. Spectators watch from the background

Naomi Osaka in mid-action during a tennis match, wearing a sporty outfit with a large bow on her back. She is focused and poised, ready to hit the ball

Naomi Osaka mid-air, swinging a tennis racket during a match at a tennis court. She is wearing a sporty outfit with a ruffled skirt

Naomi Osaka serves the tennis ball during a match, wearing a sleeveless sports outfit with a ruffled skirt and a visor

Naomi Osaka celebrates on the tennis court, wearing a sporty outfit and holding a racket, during a match

Naomi Osaka, in action, hits a forehand shot during a tennis match, wearing a sleeveless dress and matching visor

Naomi Osaka, wearing a tennis dress with ruffled skirt, looks upwards and clenches her fist while holding a tennis racket on a court

Naomi Osaka holds up a tennis racket on a court, wearing a sleeveless sporty dress with tiered ruffles

Karolina Muchova serves during a tennis match wearing a sleeveless top and headband