The 29-year-old Serbian tried his hand at different sports including cricket, football, wheelchair tennis and basketball during 'A Night with Novak' at the Margaret Court Arena on Wednesday night.
Williams, who has been outspoken in pushing for gender and racial equality, was asked in her post-match media conference whether she should focus more on her tennis than on social issues and being a celebrity.
She remained philosophical in defeat, however, saying that her expectations coming into the tournament had not been high.
Osaka threw her racket, slammed a ball into the court and gave her racket a kick for good measure before steadying the ship
Serena Williams aims to defend her Australian Open title next year, the American saying the rapid return to action would only give her around three months to prepare after giving birth to her first child.
IMAGES from Day 9 of the US Open, at the USTA Billie Jean King National Tennis Center, Flushing Meadows, New York.
IMAGES from all the action on Day 7 of the US Open played at the USTA Billie Jean King Tennis Center at Flushing Meadows in New York on Sunday.
Time is running out for Serena to reach the career milestone that has become one of the sport's longest running storylines.
Ons Jabeur hopes her success at the Australian Open will inspire other players from her region after the Tunisian became the first Arab woman to reach a Grand Slam quarter-final on Sunday. The 25-year-old dazzled the crowd at Margaret Court Arena with her variety and power, striking 29 winners to defeat China's Wang Qiang 7-6(4), 6-1 in the 77-minute contest.
Bianca Andreescu, 19, the first Canadian to win a major in the professional era, prevented Serena Williams from equalling Margaret Court's record of 24 Grand Slam singles titles.
Serena Williams won a sixth Wimbledon title on Saturday as she became the oldest woman to win a Grand Slam title following a 6-4, 6-4 victory against Garbine Muguruza in the final on Saturday.
Serena Williams said on Thursday she is treating the upcoming US Open just like any other, even though she is well aware of the historical impact the year's final Grand Slam may have.
Steffi Graf has taken up a new role, with an Indian connection at that. The legendary German tennis star was, on Wednesday, appointed the Ayurveda brand ambassador of Kerala.
Australian newspaper defies criticism, reprints Serena Williams cartoon
'Generally, I'm happy outside the court, happy on the court, happy in life. Then I think you play your best.'
The world number 181 is the first mother since 1980 champion Evonne Goolagong to reach the Wimbledon final.
Unseeded Czech Marketa Vondrousova beat Britain's Johanna Konta 7-5, 7-6(2) to reach the French Open final.
American Serena Williams won her seventh Wimbledon singles crown, and equalled the professional era record of 22 grand slam titles, with a 7-5, 6-3 victory over Germany's Angelique Kerber on Saturday:
IMAGES from Day 5 of the US Open, at the USTA Billie Jean King National Tennis Center, Flushing Meadows, New York, on Friday.
The mother of one arrived at the 2019 French Open making another fashion statement
Local hope Nick Kyrgios has been elevated to the Rod Laver Arena for his meeting with childhood hero Jo-Wilfried Tsonga at the Australian Open on Friday, when Melbourne Park is again expected to swelter.
Frenchman Mouratoglou said Williams had been able to recharge during the break and that her appetite for titles had not waned.
Rafael Nadal was reportedly happy to be on the dance floor, not on an actual one but on a tennis court, as the recovering Spaniard played in a new format called Fast4, which has been dubbed as disco tennis by some.
Following Serena Williams's 19th Grand Slam title, here is the list of Australian Open women's singles champions since the event began in 1922 (Australian unless stated)
With two men's five-set matches having caused a log-jam, Muguruza and Konta did not begin their match until 12:30 am local time (1330 GMT) on Friday at Margaret Court Arena, a record late start at the Grand Slam.
Players competed at empty stadiums at Melbourne Park through the five-day lockdown but reduced capacity crowds of 7,477 have been permitted in each of Thursday's two sessions and the same number for the singles finals sessions on Saturday and Sunday.
Serena Williams returned to the top of the WTA world rankings on Monday and immediately shared the news with her unborn baby.
Daniil Medvedev fired Russia into the final of the ATP Cup on Saturday with a tense 3-6, 6-3, 7-5 win over an injury-hampered Alexander Zverev after the German destroyed a racket in frustration over a lost service break.
With no standout favourite in the women's field, it could provide an ideal stage for American Serena Williams to finally end her quest for an elusive 24th Grand Slam title.
Simona Halep has been in red-hot form and the absence of top-ranked Australian Ash Barty, who won her maiden Grand Slam in Paris last year, and US Open champion Naomi Osaka, will boost her chances further.
British Prime Minister Rishi Sunak on Monday sacked his Indian-origin Home Secretary, Suella Braverman, and replaced her with James Cleverly, while former premier David Cameron, in an unusual move, is back in the frontline government as the new foreign secretary.
Play was held up during the Australian Open men's final on Sunday when a banner was unfurled protesting against the treatment of refugees, with one person jumping on centre court.
The World No 1 becomes earliest qualifier for WTA Finals
Sofia Kenin said that the experience at Roland Garros changed her career trajectory.
Novak Djokovic beat Casper Ruud in the French Open final to win a men's record-extending 23rd Grand Slam title.
Serena Williams has given birth to a baby girl, the first child for the former world number one tennis player, her coach Patrick Mouratoglou said on Twitter on Friday.
Five things to watch out for at the French Open on Wednesday.
Beaten by Roger Federer in last year's final, Cilic was pushed to the brink by Spanish veteran Verdasco who had the Croat on the ropes in the fourth set tiebreak.
IMAGES from Day 1 of all the action from the Wimbledon Championships played at the All England Lawn Tennis and Croquet Club, London, on Monday.
Images from Day 8 of the Australian Open in Melbourne on Monday.
