Which matches are you most looking forward to seeing on day six and who do you think will progress to the last 16 from our picks?
JUAN MARTIN DEL POTRO (ARG) vs DAVID FERRER (ESPx11)
DEL POTRO vs FERRER
Once perennial top 10 players, Del Potro’s injury issues are well documented while Ferrer has been on the slide all year. How much the Spaniard’s five-setter against Fabio Fognini has taken it out of him could prove decisive.
SPORT360 VERDICT: Del Potro in five sets.
DAN EVANS (GBR) vs STAN WAWRINKA (SUIx3)
Evans was calm and collected in his upset win over Zverev while Wawrinka has been a class act throughout. The British baseliner will offer plenty of resistance to the world No3 but needs to mix his game up to have a chance.
SPORT360 VERDICT: Wawrinka in straight sets.
KEI NISHIKORI (JPNx6) vs NICOLAS MAHUT (FRA)
WAWRINKA (SUI) vs GIANNESSI (ITA)
A nice clash of styles with the slight and technical Nishikori against the French scrapper with the powerful serve. The US Open just seems to suit Nishikori and he has been very efficient in his shot selection so far in New York.
SPORT360 VERDICT: Nishikori in straight sets.
TIMEA BABOS (HUNx31) vs SIMONA HALEP (ROUx5)
The often-streaky Halep is in a fantastic run of form with 23 wins in her last 26 matches and did well to overcome the taller Safarova on Thursday. At 5ft 10ins, Babos is the same height and will look to force the issue.
SPORT360 VERDICT: Halep in three.
AGNIESZKA RADWANSKA (POLx4) vs CAROLINE GARCIA (FRAx25)
RADWANSKA (POLx4) vs GARCIA (FRAx25)
Victory will see Radwanska equal her best ever showing at the US Open having never made it past the fourth round. In her way is Garcia, who she holds a superior record over and who’s needed three sets in each round so far.
SPORT360 VERDICT: Radwanska in straight sets.
Defending champion Novak Djokovic reached the US Open last 16 in just 32 minutes on Friday when Russian opponent Mikhail Youzhny retired at 2-4 down in the first set.
The 34-year-old Youzhny had needed treatment on a left leg injury after five games and called it quits just a game later.
World number one Djokovic had reached the third round on a walkover when Jiri Vesely withdrew from their second round clash.
The top seed had needed four sets to beat Jerzy Janowicz in the first round on Monday.
KEYS LEAVE IT LATE
Madison Keys mounted an epic final set comeback to keep her title dreams alive.
The eighth-seeded American won the latest-ever finishing women’s match at the tournament on Monday when she completed victory over compatriot Alison Riske at 1:48am.
On Friday, the 21-year-old was involved in more drama when she rallied from 1-5 down in the final set to defeat Japan’s Naomi Osaka 7-5, 4-6, 7-6 (7/3).
The 18-year-old Osaka was reduced to tears as she twice served for the match but choked under the immense pressure.
“This is the greatest comeback of my career, hands down,” said Keys who will face two-time runner-up Caroline Wozniacki for a quarter-final spot.
PUT A SOCK IN IT
Jack Sock sent 2014 champion Marin Cilic crashing out in spectacular style, blowing the Croatian off the court.
Sock, the 26th seed, reached the fourth round for the first time by knocking out a cramping seventh seed Cilic, 6-4, 6-3, 6-3 in tie where he did not face a single break point.
The 23-year-old, whose last two appearances at the US Open had ended in retirements, goes on to face French ninth seed Jo-Wilfried Tsonga (who got past Kevin Anderson in four sets).
Sock had defeated Cilic from two sets down in America’s losing effort in the quarter-finals of the Davis Cup.
SERENA RULES OVER KING
World number one Serena Williams defeated fellow American Vania King 6-3, 6-3, her 306th Grand Slam singles match win tying her with Martina Navratilova for the most ever for a woman.
This one’s kind of cool,” she said of her latest milestone, “to win 306.”
There could be more history in store for Williams as she seeks a seventh US Open title and a 23rd Grand Slam singles crown, both of which would be Open Era records.
She fired 13 aces, with a total of 38 winners against 87th-ranked wild card King, and said the troublesome right shoulder that has hindered her since Wimbledon wasn’t a problem.
“So far, so good,” said Williams, who was cheered on by rap mogul Jay Z and his pop superstar wife Beyonce as she booked a meeting with 47th-ranked Swede Johanna Larsson for a place in the last 16.
Despite wrapping up the victory in just 65 minutes, Williams said there was plenty of room for improvement.
“I feel like I made a lot of errors,” Williams said. “What really matters is I got the win. Hopefully I’ll just get better.”
Serena Williams wins 306th Grand Slam match, tying Martina Navratilova for most Grand Slam wins in women’s history. pic.twitter.com/GXyDlCNvXY— SportsCenter (@SportsCenter) September 2, 2016
MURRAY DROWNS OUT MARCEL CHALLENGE
By the time Williams opened the night session the rain that prompted organizers to close the new roof on Arthur Ashe stadium had tailed off.
Murray had played with it drumming on the roof, adding to the noise the US Open is famous for.
“You can’t hear anything, really,” said Murray, who downed tenacious Spaniard Marcel Granollers 6-4, 6-1, 6-4.
“I mean, you could hear the line calls, but not so much when he was hitting the ball or even when you’re hitting the ball, really, which is tough.”
Nevertheless, after needing seven set points to seal the first frame, Murray broke Granollers twice in the second set and once in the third to move through to a meeting with Italian Paolo Lorenzi, a 3-6, 6-2, 6-2, 6-7 (1/7), 7-6 (7/3) winner over France’s Gilles Simon.
DEL POTRO CONTINUES RESURGENCE
Juan Martin del Potro, who has undergone four wrist surgeries since lifting the US Open trophy in 2009, closed out the action on Ashe with a 7-6 (7/5), 6-3, 6-2 victory over 19th seeded American Steve Johnson.
Del Potro, ranked 142nd in the world as he battles back from the injuries that nearly cost him his career, is back in the Open as a wildcard after a sparkling run to a silver medal in the Rio Olympics.