Serena Williams

The American, 35, is due to give birth in the autumn, says her representative.

The world number two posted a picture on social media app Snapchat, posing in a mirror with the message: "20 weeks", before deleting it.

If accurate, that would mean Williams was around eight weeks pregnant while winning in Melbourne.

Williams will miss the rest of the season, having not played since the Australian Open, citing a knee injury.

Yet few expect to be challenged during a friendly match on a public court.

Sunday when 23-time time grand slam champion Serena Williams asked two unsuspecting recreational tennis players if she could share a court with them.

The exchange was captured and published on Williams' Snapchat account.

When Serena beat her older sibling in the Australian Open final 6-4 6-4, she collected a 23rd grand slam title to surpass Steffi Graf for the Open Era lead.

Now she only trails all-time leader Margaret Court by one major and the way she played in Melbourne -- not dropping a set -- Serena, 35, is looking good to achieve that feat later in 2017.

"It's never enough, 23, 24, 25," Serena told the crowd after her win. "I felt like I really elevated my game this year."

The superstar athlete posted a photo on Reddit, naturally, as she is engaged to the social site's co-founder, Alexis Ohanian.

The pic, titled "Engagement shoe game," shows the couple with Williams sporting a massive rock on her engagement ring finger.

The tennis great took several fans by surprised when she announced her engagement last week.

Wolverine actor Hugh Jackman and Frank Ocean were among 80,000 people in the crowd at New Jersey's MetLife Stadium.

Beyonce sang tracks from her six solo albums, including her latest effort, Lemonade.

Jay Z joined his wife for Drunk In Love, making his first appearance on the tour, which started in April.

Kendrick Lamar's cameo included a dance-off with Beyonce in a pool of water during Freedom.

Meanwhile Serena Williams - who appears in the music video for Sorry - brought the clip to life by twerking while Beyonce sang the song.

The US tennis star posted that she found herself feeling wary of law enforcement during a recent journey with her teenage nephew.

Williams said that when they drove by a patrol car she remembered a woman whose boyfriend was fatally shot by police.

She is the latest athlete to speak out about friction between law enforcement and the black community in the US.

In Tuesday's Facebook post, Williams, 35, wrote that she had asked her 18-year-old nephew to drive her somewhere so she could work during the journey.

The US tennis star posted that she found herself feeling wary of law enforcement during a recent journey with her teenage nephew.

Williams said that when they drove by a patrol car she remembered a woman whose boyfriend was fatally shot by police.

She is the latest athlete to speak out about friction between law enforcement and the black community in the US.

In Tuesday's Facebook post, Williams, 35, wrote that she had asked her 18-year-old nephew to drive her somewhere so she could work during the journey.

The tennis GOAT is the face of Delta Airlines' latest advertisement, which shows off her skills as she dreams of holding a dance-off.

The world number one tried "a spoonful" of food meant for her dog Chip before beating fellow American Christina McHale in straight sets in Rome.

"I thought 'what the heck, I'm gonna try a piece, it looks good'," said the 34-year-old.

"Fast forward two hours - I just ran to the toilet like I thought I was going to pass out."

The 34-year-old has been accused of posting an edited picture of herself from a photoshoot with People magazine. The sportswoman featured in their Most Beautiful 2016 list, behind Jennifer Aniston who landed the number one spot and cover.
To celebrate, the tennis ace posted a picture of herself in a black, low-cut leotard with a noticeably smaller waist than in the original shot.