"serena-williams"

The Olympics beginning in Tokyo from July 23 will see many firsts -- deferred by a year, no crowds, athletes in a bio-bubble and stringent protocols 

Serena Williams injured her right leg when her left shoe lost traction behind the baseline in almost the exact same spot Adrian Mannarino went down.

The seven-time singles Wimbledon champion sustained an injury during her first-round match against Aliaksandra Sasnovich of Belarus.

The 24-year-old Podoroska took a 5-2 lead in the second set but was broken at love the first time she tried to serve out the match.

While Nadal and Federer holds the record for most Grand Slam titles in men's singles, Margaret holds the record for most titles in women's singles with 24

The Japanese sets up summit clash with Jennifer Brady.

"Then I sort of eased my way into it. For me, I think the biggest thing is just having fun and it's the first day having the crowd in a while ... it's always an honour to play her. I just didn't want to go out like really bad, so I just wanted to try my best."

The 39-year-old defeated Belarus' Aryna Sabalenka 6-4, 2-6, 6-4 at the Rod Laver Arena, and as a result, she remains in a chance of winning yet another Grand Slam.

"I came out a little bit not (out) of the starting blocks like I would have wanted to and like I have been since I've been playing here, but you know it's about surviving and playing better every round," Williams said after the match.

Thiem eases into third round but Wawrinka, Venus Williams make early exits.