Novak Djokovic will begin his Australian Open title defence against Frenchman Jeremy Chardy, while reigning women's champion Sofia Kenin meets wild card Maddison Inglis, following the draw for the year's first Grand Slam on Friday.
Next up for the 35-year-old will be another American in 39th-ranked Tommy Paul with a potential semi-final clash against top-seeded Russian Daniil Medvedev, who he defeated in the Australian Open final from a two-sets deficit.
Serena will not be in the US team for the Tokyo Olympics
Brady saw four match points slip through her fingers as she served it out nervously but finally celebrated the win when Muchova fired a forehand long.
Three women in the field have topped the world rankings this season, incumbent Simona Halep and her predecessors Garbine Muguruza and Karolina Pliskova, but none of them have been able to kick on and cement their place as the tour's dominant player.
Images from all the action on Day 9 of the Australian Open at Melbourne Park on Tuesday
Following Iga Swiatek's victory over Coco Gauff in the final, here's a list of French Open women's singles champions:
Can World No. 1 Simona Halep thrive at the All England Club? Or will Serena Williams add to her seven Wimbledon titles?
From potential dark horses to former champions, here are the players who were knocked out of the Australian Open on Thursday
Azarenka, 31, brought her an ice pack and a towel before helping the Russian qualifier, who burst into tears, to her chair where she received treatment.
The 23-year-old, who this week became the first Australian woman to reach the top of the rankings since 1976, must survive a rough-looking path if she is to claim back-to-back Grand Slams having won her first at this month's French Open.
Jamie Murray's hopes of making up for brother Andy's Wimbledon semi-final defeat by Roger Federer ended in disappointment when he and partner John Peers lost the men's doubles final to Jean-Julien Rojer and Horia Tecau on Saturday.
Images from Day 8 of the Australian Open in Melbourne on Monday.
Serena Williams sounded a warning for her fellow Australian Open contenders with a sleek win
With only two weeks to go for the Australian Open, tennis stars Roger Federer, Victoria Azarenka, Radek Stepanek and Garbine Muguruza were seen in a light-spirited mood in Brisbane. As part of Nickelodeon Kids Day, the tennis stars led by 17-time Grand Slam winner Roger Federer posed for pictures with cartoon characters.
As the fans head toward Flushing Meadows, tennis stars gear up with ground-breaking styles to rule the courts.
Magdalena Rybarikova, who was crushed by Garbine Muguruza in the Wimbledon semi-finals on Thursday, said she was tired and nervous going into the match and had no idea how to respond to her opponent's superb shot-making.
Defending champion Angelique Kerber battled her nerves and blew a match point in the second set before finally overcoming Lesia Tsurenko 6-2, 5-7, 6-2 to reach the second round.
The peak remains tantalisingly close for Serena Williams but negotiating the final incline to a record-equalling 22nd Grand Slam singles title is proving the trickiest of all.
Red-hot Rafael Nadal faces Delbonis, says majors tally not a focus
Former champion Ana Ivanovic was at her brilliant, aggressive best on Tuesday. The seventh seed swept aside Ukraine's Elina Svitolina 6-3, 6-2 to storm into the French Open semi-finals.
The section affected was situated just below Court Philippe Chatrier, the main arena of the Paris stadium where defending champion Garbine Muguruza was playing Estonian Anett Kontaveit.
Former champion Stan Wawrinka battled past Russian fourth seed Daniil Medvedev in five sets to reach the Australian Open quarter-finals with a 6-2, 2-6, 4-6, 7-6(2), 6-2 victory. Fifth seed Dominic Thiem kept his flawless record against Gael Monfils intact with a trouble-free 6-2, 6-4, 6-4 victory on Monday to reach his maiden Australian Open quarter-final.
Here are images from a hot, hot day from Melbourne Park...
Zverev, who is looking for his fourth tournament win of the year, needed only 64 minutes to defeat Nishikori and move into the final in WashingtonDC where he will play Kevin Anderson after the South African beat Jack Sock by the same score.
Top seed Simona Halep was pooled with grand slam winners Maria Sharapova and Flavia Pennetta in a formidable looking Red Group for the end-of-season WTA Finals on Friday.
Images from the second day's play of the 2016 French Open at the Roland Garros
'I think what Venus and her sister have given our sport is absolutely tremendous. The way they've elevated women's tennis is truly inspiring'
With Wimbledon scrapped due to the pandemic, a flashback of some of the best moments from the last five championships at SW19.
Tactical change helps Halep to French Open semis
Suarez Navarro completed her chemotherapy in January, a milestone moment after her life was turned upside down.
In the women's draw, defending champion Garbine Muguruza will play 2010 French Open winner Francesca Schiavone
India's Leander Paes and his German partner Alexander Zverev went down to the Spanish duo of Feliciano Lopez and Marc Lopez in a men's doubles first round match to bow out of the Cincinnati Open.
Serena Williams has gone 3-2 in matches that all lasted three sets and have taken a toll on her weary legs.
If Serena Williams wanted to sound like someone who did not really care whether she won another Wimbledon or not, telling the world she just wanted to have fun, nobody was fooled on Thursday.
Romania's Italian Open winner Simona Halep, Spain's Garbine Muguruza and US Open semi-final foe Victoria Azarenka of Belarus present a major challenge for Serena Williams at the upcoming French Open.
Serena Williams took some coaching advice from a fan during her fourth round match.
Zverev has not lost to Wawrinka in two previous meetings but is not taking the 2014 Melbourne Park champion lightly.
Roger Federer, who missed the French Open through injury, plays Guido Pella in the first round. Second seed Andy Murray faces an all-British first round against wildcard Liam Broady. Fourth seed Stan Wawrinka, Murray's prospective semi-final opponent, begins against American teenager Taylor Fritz.
Indian tennis ace Sania Mirza and her Swiss partner Martina Hingis lifted their ninth title together this year beating the Spanish pair of Garbine Muguruza and Carla Suarez Navarro to clinch the WTA Finals women's doubles trophy, in Singapore, on Sunday.