The four-time Grand Slam winner introduced five different bejeweled dolls that not only matched her outfit but were also named after tennis legends such as Arthur Ashe, Althea Gibson, Billie Jean King and Andre Agassi. She even named her final Labubu after herself and introduced "Naomi Glowsaka" on Instagram.

According to Osaka, she was sick over Christmas, and that was to blame for her first loss of 2026. Maria Sakkari defeated Osaka in straight sets at the United Cup on Friday as Japan took on Greece: 6-4, 6-2.

Emma Raducanu sat out Great Britain's United Cup opener as Japan, behind Naomi Osaka, took the favourites to the wire.

Naomi Osaka revealed that she was sick after losing her opening match of the year, but also noted that her serving issues and tremors weren't due to illness. On Friday, the 16th-ranked Japanese launched her United Cup debut with a 4-6 2-6 loss to 52nd-ranked Greek Maria Sakkari.