Defending champion Rafael Nadal on Sunday reached the US Open quarter-finals for the eighth time where he will face Dominic Thiem, one of only three men to defeat him in 2018.
World number one Nadal saw off a battling Nikoloz Basilashvili, the first Georgian in a fourth round in New York, 6-3, 6-3, 6-7 (6/8), 6-4.
"It's a big victory for me," said the 32-year-old Nadal, the champion in 2010, 2013 and 2017.
"A lot of credit to him. He was hitting the ball very strong and when I thought I was in control of the points, he always came back with strong shots."
However, it was world number 37 Basilashvili's strength which proved his undoing.
His 56 winners were erased by 59 unforced errors which in turn were three times as many committed by Nadal.
The Spanish star cruised into a two-set lead on Sunday, seemingly fully recovered from the trauma of fighting back from a set and break down to Russia's Karen Khachanov on Friday.
But Basilashvili stunned Nadal in the third set tiebreak and even retrieved a break for 3-3 in the fourth set before Nadal's greater composure paid off.
Next up for Nadal is Thiem who he defeated in the Roland Garros final in June when he captured an 11th French Open.
Thiem, who beat Nadal on clay in Madrid in the run-up to Paris, booked his place in the US Open quarter-finals for the first time with a 7-5, 6-2, 7-6 (7/2) win over 2017 runner-up Kevin Anderson.
The ninth-seeded Austrian's three other appearances in the last-eight of a Slam have all been on the clay of Roland Garros in 2016, 2017 and 2018.
Nadal leads their head-to-head 7-3 with all of their matches coming on clay courts.
"Thiem is a great opponent, he has the big serve and he had a big win today against Kevin," said Nadal who has made the last-eight of every Slam in the same year for the first time since 2011.
Thiem has unfinished business at the US Open.
Last year, he had two match points against Juan Martin del Potro in the fourth round but fell to the Argentine in five sets.
"It's a dream coming true," said Thiem.
"I was really close last year, I couldn't close it out."
Thiem's progress to the last-eight comes despite choosing to play European clay court events after Wimbledon before then losing his only summer hard court outing in Cincinnati to Stefanos Tsitsipas.
He is the first Austrian in the last-eight at the US Open since Thomas Muster in 1996.
On Sunday, he never faced a break point and hit 42 winners.
"Against Rafa, I've had three very nice experiences and seven horrible experiences," said 24-year-old Thiem.
"But I'm really looking forward to play him on hard court for the first time.
"On clay, I think it's one of the biggest challenges in sports to beat this guy. I hope that it's a little bit more comfortable on hard court, but I'm not sure."
Anderson went into Sunday's match with Thiem boasting a 6-1 record with his only loss against the Austrian on clay in Madrid this year.
His wins had all been on hard courts, including the US Open third round in 2015 in straight sets.
"I definitely felt he played a great match. He made life pretty difficult for me. I thought he defended amazingly," said Wimbledon runner-up Anderson.
Later Sunday, 2009 champion and Argentine third seed Del Potro will look to make the quarter-finals for the sixth time when he faces Croatia's Borna Coric under the Arthur Ashe lights.
Coric, 21, is playing in the fourth round at a Slam for the first time.
The day's other last-16 duel sees US 11th seed John Isner tackle fellow big-server Milos Raonic, the 25th seeded Canadian.
Isner was a quarter-finalist in 2011 while Ranoic has yet to make the last eight.