Tennis star

The former world number one is working with Unicef to provide medical supplies and development kits.

Russia's attack on Ukraine has so far seen more than two million people flee the country.

The three-time Grand Slam winner, who is an ambassador for Unicef UK, said: "It's vital education continues, so Unicef is working to enable access to learning for displaced children, as well as supporting the rehabilitation of damaged schools, together with replacement equipment and furniture."

Osaka has lately had a strained relationship with sections of the media, saying her mental health is adversely impacted by certain lines of questioning.

Hence on Tuesday, when a local Cincinnati reporter at the Western and Southern Open suggested that Osaka benefits from her huge media profile but does not like speaking to reporters, the world number two teared up as she tried to formulate an answer.

"When you say I'm not crazy about dealing with you guys, what does that refer to?" asked Osaka, who is of Japanese-Haitian heritage.

Williams and her fiancée Alexis Ohanian, the Reddit co-founder, welcomed their little girl on 1 September at a clinic in Florida.

The 23-time Grand Slam winner shared a video clip on her Instagram Stories, Facebook and website.

Williams announced the name of her baby daughter on her Instagram Stories profile. She also shared a montage of memorable moments from her pregnancy, including winning the Australian Open while pregnant and her first ultrasound.