The outer black pieces were designed by Kevin Germanier, who is known for his sustainable approach to fashion, while the gold dress was custom made by Nike.

"Sometimes people say athletes are in show business or entertainers or whatever," Osaka said.

"For me, Grand Slam walk-ons are the only time that I possibly feel like I'm an entertainer."

At the Australian Open in January, Osaka made a statement entrance in a jellyfish-inspired outfit which she dedicated to her two-year-old daughter Shai.

Former British number one Annabel Croft said a lot of players "would not be able to live up to the expectation" of walking out in custom made outfits like Osaka's.

"If you out there in an extraordinary outfit, you've got to live up to that and have the confidence to play in it and give the crowd the tennis as well as the outfit," she said on BBC Radio 5 Sports Extra.

"Naomi can handle it. She really loves it and she's not fazed by it."

Since the birth of her daughter in 2023, Osaka has re-established herself in the world's top 20 and she reached the semi-finals at the US Open in September.

The former world number one will face Croatia's Donna Vekic in the next round.