Monday features the conclusion of ATP third round singles matches, as well as all fourth round singles matches in the WTA singles draw.
World No.1 Aryna Sabalenka is looking for her first big title of the year, after being upset in the final of both the Australian Open and Indian Wells. In the round of 16, she takes on defending champion Danielle Collins, who is on a nine-match winning streak in Miami. In addition, Iga Swiatek, Naomi Osaka, Coco Gauff, and Qinwen Zheng all play their fourth round matches on Monday.
The ATP draw also sees Americans playing seeded opposition on Monday. Frances Tiafoe faces French No.1 Arthur Fils, while American No.1 Taylor Fritz goes up against Denis Shapovalov. And in the night session, Brazilian sensation Joao Fonseca squares off against the tenth seed, Alex de Minaur.
Each day, this preview will analyze the two most intriguing matchups, while highlighting other notable matches on the schedule. Monday’s play gets underway at 11:00am local time.
Aryna Sabalenka (1) vs. Danielle Collins (14) – Not Before 1:00pm on Stadium
Sabalenka is 19-4 on the year, and won her first 11 matches of 2025. That included a title run in Brisbane, and a third consecutive run to the final of the Australian Open. But Aryna lost that final to Madison Keys, and then lost her next big final at Indian Wells, to Mirra Andreeva. During the first week here, she dropped just four games through three completed sets, though surprisingly Sabalenka is just 10-6 lifetime in Miami.
A year ago in Miami, Collins won the biggest title of her career. However, she’s missed six of the last seven WTA 1000 events, as she suffered an injury during last summer’s Olympics, and is also being selective as to how many events she plays. Danielle arrived here just 3-3 this season, yet has won two tight matches to reach this round of 16 contest.
The history between these two has been entirely one-sided. Sabalenka is 6-0 against Collins, with four of those meetings taking place on hard courts. Aryna is certainly the more in-form player, and is a significant favorite to reach her third Miami Open quarterfinal.
Arthur Fils (17) vs. Frances Tiafoe (16) – Third on Grandstand
Tiafoe has been in a pretty considerable slump since losing in the US Open semifinals to fellow American Taylor Fritz, despite holding a two-sets-to-one lead. Across the past six months, he’s now 10-11, and just 6-5 during 2025. Frances hasn’t won back-to-back matches since leaving New York. However, he holds a 14-7 record in Miami, easily his best record at any Masters 1000 tournament.
While Tiafoe has been adrift, Fils has been on the rise. Arthur won two 500-level titles last year, and just became the top-ranked Frenchman with his quarterfinal run at Indian Wells, where he very nearly upset Daniil Medvedev to make the semis. The 20-year-old received a mid-match retirement in his opening round on Saturday.
In this first-time matchup, I favor Fils to prevail. During the same span where Tiafoe has gone 10-11, Fils has gone 21-12. And unfortunately for Frances, this match has been scheduled during the day session, as many of his signature Miami Open and US Open wins have come in front of rowdy night session crowds.
Other Notable Matches on Monday:
Naomi Osaka vs. Jasmine Paolini (6) – Osaka survived a grueling contest against Hailey Baptiste on Saturday afternoon, bringing her 2025 record to 9-3. On the same day, Paolini only needed to play seven games, as Ons Jabeur was forced to retire due to injury. This is their first career meeting.
Alexander Zverev (1) vs. Jordan Thompson – Zverev came into this event having lost three of his last four matches. Thompson has already pulled out a pair of long three-setters to reach this stage. They have split four prior encounters, all on hard courts.
Taylor Fritz (3) vs. Denis Shapovalov (27) – Just last month in Dallas, Shapovalov upset Fritz in a third-set tiebreak. Denis also leads their head-to-head 6-4.
Qinwen Zheng (9) vs. Ashlyn Krueger – Qinwen arrived in Miami just 4-4 on the year, and just 3-3 lifetime in Miami. Krueger is a 20-year-old American who recently debuted inside the top 40, and has already taken out two seeded players (Rybakina, Fernandez). At last year’s Australian Open, Zheng defeated Ashlyn 6-3 in the third.
Coco Gauff (3) vs. Magda Linette – Gauff beat Maria Sakkari for the second time in as many tournaments on Saturday, but she’s never advanced beyond this round of her home state’s biggest tournament. Coco is 2-0 against Magda, with both wins coming on hard courts.
Alex de Minaur (10) vs. Joao Fonseca – Fonseca is now 22-4 this season at all levels, after beating Ugo Humbert in straight sets on Saturday, in a match that was moved to Stadium court at the last minute to accommodate the many thousands of fans on site that wanted to see Joao play. De Minaur is a solid 16-5 during 2025, but he owns a losing record at this tournament.
Elina Svitolina (22) vs. Iga Swiatek (2) – Swiatek defeated Elise Mertens on Sunday afternoon in straight sets, while Svitolina won a three-setter against Karolina Muchova. Iga is 2-1 against Elina, and claimed their only hard court matchup in straight sets.
Monday’s full Order of Play is here.
