US Open Tennis 2021 Results: Winners, Scores, Stats from Saturday's Singles Bracket

No. 1 Novak Djokovic's Grand Slam dream stayed alive Saturday after he withstood a tough challenge from Kei Nishikori and advanced to the U.S. Open's round of 16 following a four-set victory.

However, No. 1 Ashleigh Barty's U.S. Open run is now over after losing a three-set thriller to Shelby Rogers, who won on a tiebreaker.

Those were just two of the 16 third-round matches were scheduled from the USTA Billie Jean King National Tennis Center in Queens, New York.

Elsewhere, No. 6 Matteo Berrettini survived and advanced after needing five sets to beat Ilya Ivashka.

Other notable results included 2019 U.S. Open champion Bianca Andreescu's convincing straight-sets win over Greet Minnen and No. 17 Maria Sakkari's upset win over two-time Wimbledon champion Petra Kvitova.

No. 7 Denis Shapovalov is also out after losing in straight sets to Lloyd Harris.

Here's a look at Saturday's scores, some recaps and highlights and the remaining schedule for the day.

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Women's Singles

Shelby Rogers def. No. 1 Ashleigh Barty: 6-2, 1-6, 7-6 (5)

No. 4 Karolina Pliskova def. Ajla Tomljanovic: 6-3, 6-2

No. 6 Bianca Andreescu def. Greet Minnen: 6-1, 6-2

No. 7 Iga Swiatek def. No. 28 Anett Kontaveit: 6-3, 4-6, 6-3

No. 17 Maria Sakkari def. No. 10 Petra Kvitova: 6-4, 6-3

No. 11 Belinda Bencic def. No. 23 Jessica Pegula: 6-2, 6-4

No. 14 Anastasia Pavlyuchenkova def. Varvara Gracheva: 6-1, 6-4

Emma Raducanu def. Sara Sorribes Tormo: 6-0, 6-1

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Men's Singles

No. 1 Novak Djokovic def. Kei Nishikori: 6-7 (4), 6-3, 6-3, 6-2

No. 4 Alexander Zverev def. Jack Sock: 3-6, 6-2, 6-3, 2-1 (retired)

No. 6 Matteo Berrettini def. Ilya Ivashka: 6-7 (5), 6-2, 6-4, 2-6, 6-3

Lloyd Harris def. No. 7 Denis Shapovalov: 6-4, 6-4, 6-4

No. 13 Jannik Sinner def. No. 17 Gael Monfils: 7-6 (1), 6-2, 4-6, 4-6, 6-4

Jenson Brooksby def. No. 21 Aslan Karatsev: 6-2, 3-6, 2-6, 6-3, 6-3

No. 22 Reilly Opelka def. Nikoloz Basilashvili: 7-6 (5), 6-3, 6-4

Oscar Otte def. Andreas Seppi: 6-3, 6-4, 2-6, 7-5

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Recaps and Highlights

Djokovic dropped the first set following a tiebreaker, but he largely dominated from that point forward en route to his advancement.

The Serbian has now made the fourth round of the U.S. Open on 14 straight occasions.

The 20-time Grand Slam singles winner is looking for his fourth U.S. Open title.

Berrettini is looking for his first major win, and he's still alive after surviving a difficult match against Ivashka.

Berrettini smashed 27 aces, including what was arguably the best one of the day:

He also committed 64 unforced errors and won just 14 of 54 second-return points, but the Italian was able to persevere and move on.

Andreescu had a much less stressful third-round match after she moved to 10-0 lifetime at Flushing Meadows by winning 12 of 15 games. It only took her 1:08 to move on to the round of 16.

The Canadian did not play in last year's U.S. Open because of injury. She went 7-0 in 2019 before winning her first three matches this season.

Mitten had her chances, finding herself with four break-point opportunities. However, Andreescu fended off each one and won four of her six chances.

Speaking of break points, Sakkari kept the pressure dialed up on Kvitova's serves, finding herself with 10 break-point opportunities in her win. She converted three of them en route to the 6-4, 6-3 victory, including one for match point.

Sakkari, a semifinalist in this year's French Open, has now advanced to the round of 16 in the U.S. Open in consecutive years. She'll take on Andreescu next.

Barty was the presumptive tournament favorite entering the evening, but an off-night led to an early exit.

The reigning Wimbledon champion made 39 unforced errors compared to Rogers' 20, and she also committed eight double faults.

Barty served for the match up 5-2 and then 5-4 in the third set, but Rogers broke her each time.

The Australian then found herself on her heels serving down 6-5, but she held to force the tiebreaker.

Once there, both women held serve through 10 points, but Rogers won the last two to earn the upset victory.

The resilient Rogers took advantage of her opportunities, winning 4-of-7 break points. She'll face Emma Raducanu next.

Rogers' win wasn't the only evening upset as Shapovalov fell to Harris in straight sets.

Shapovalov had 40 unforced errors, while Harris had 23. Harris also won 6-of-8 break points, 10-of-13 net points and 47-of-63 first-serve points.

The U.S. Open fans were behind the underdog, as seen here after Harris took the second set.

No. 22 Reilly Opelka, who won in straight sets over Nikoloz Basilashvili Saturday, will face Harris in the Round of 16.

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This article will be updated to provide more information on this story as it becomes available.

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