US Open

In a two-hour, 26-minute encounter marred by rain, Rublev won 6-4, 6-4, 6-4, gaining crucial breaks in all three sets to emerge victorious. He now awaits the winner of the match between Spain's Rafael Nadal and home favourite Frances Tiafoe in the last-eight stage. Four-time champion Nadal and Taifoe play later on Monday night.

Down 0-2 in the second set after winning the first easily. Pegula stormed back to take control of the match and won six games in a row in their fourth-round clash halted once by rain on Monday. The 28-year-old American won the match 6-3, 6-2 in one hour and 13 minutes to make the quarterfinals for the first time in the US Open. Pegula capitalised on her solid returns -- 27/44 points won on return (61 percent) as compared to Kvitova who claimed 22/53 points (42 percent). She also made fewer unforced errors -- 13 as against 24 by Kvitova and won six of the seven break points that ame her way whereas Kvitova could manage to win only two of the six chances she bagged.

According to 'Xinhua', World No. 7 Ruud, who has a much higher ranking than Moutet, notched up the 6-1, 6-2, 6-7(4), 6-2 win to set up a meeting with 13th seed Matteo Berrettini of Italy, who scraped past Alejandro Davidovich Fokina of Spain 3-6, 7-6(2), 6-3, 4-6, 6-2. Moutet has had the best run of his career at a major tournament, becoming the first lucky loser to reach the US Open men's singles fourth round.

No. 19 seed Collins has the fourth round of the US Open for the first time in her career and will now face No. 6 seed Aryna Sabalenka for a spot in the quarterfinals. The 28-year-old Collins is part of a quartet of American women into the Round of 16, joining No. 8 seed ````, No. 12 seed Coco Gauff, and No. 29 seed Alison Riske-Amritraj.

"My best match in the tournament... Easy to say that because the other day was tough. But, yeah, important improvement. But I need to keep going. It's a good victory for me. Straight sets for the first time. Third set (was) a challenge. He increased the level," Nadal, bidding for his fifth US Open trophy, was quoted as saying by atptour.com.

The top-ranked Swiatek was tested in the match but she stepped up during crucial moments to equal her best performance at the season-ending Grand Slam. The Pole had also reached the fourth round last year. Swiatek, 21, is trying to become the first player since Serena Williams to win seven titles in a single year; the now-retired American having achieved the feat eight years ago, when she also became the last No.1 seed to take the US Open title. Swiatek has played amazing tennis this year, with her 37-match winning streak earning her the French Open crown and WTA 1000s titles in Doha, Indian Wells, Miami and Rome.

Kvitova, the No. 21 seed who won the Wimbledon women's singles title in 2011 and 2014, saved two match points to beat Muguruza, the 2016 French Open and 2017 Wimbledon winner, 5-7, 6-3, 7-6(10) in 2 hours and 38 minutes. The clash of two-time Grand Slam champions, the seventh edition of a rivalry dating back to 2015, was a barnburner to the end. Muguruza served for the match at 5-3 in the third set and held two match points on Kvitova's serve at 6-5, but the Czech escaped both situations to eventually convert her own fourth match point in the super-tiebreak.

The 23rd seed Kyrgios, a Wimbledon finalist this year, fended off all seven break points he faced and took one hour, 54 minutes to get past the American on the Louis Armstrong Stadium, and will need to beat the tall Russian to secure his maiden appearance in the quarterfinals. Medvedev took the court after the pulsating three-hour final between Serena Williams and Australia's Ajla Tomljanovic inside Arthur Ashe Stadium and defeated China's Wu Yibing 6-4, 6-2, 6-2 to reach the second week for the fourth consecutive year

Serena Williams, 73-time winner on the WTA Tour who also won a record-equalling six US Open titles, was given a standing ovation as she exited the court one last time with some of the most magical numbers of all time. Several top players including American Coco Gauff and Japan's Naomi Osaka, among other, paid tributes to the 40-year-old champion who is only fifth on the all-time list of winners on the WTA Tour.

The victory pushed Jabeur's record against Americans to 11-1 this season and put her into the fourth round of the US Open for the first time in her career. The Tunisian is the first player from her country to do well in the Grand Slams. It was a disappointing loss for Rogers, who for the past two years has dethroned several top seeds here in Flushing Meadows, including last year's victory over No. 1 Ash Barty. But when Rogers blinked and served a double fault at 6-4, 4-4, Jabeur took the opportunity and never looked back, taking seven of the last 10 games to seal the win.