Del Potro will no doubt head into that match with real confidence after seeing Thiem's success in hitting through the three-time victor, while the amount of time spent on court can't be helping Nadal's troublesome knee.
After nearly three and a half hours, the three-time victor at Flushing Meadows belatedly came through 6-3, 6-3, 6-7 (6-8), 6-4 ahead of an encounter with French Open finalist Thiem.
Following his victory yesterday, Spaniard Nadal, who will face Dominic Thiem in the quarter-finals, said: "I've had tough matches in a row".
"Besides being small, you have to understand the history of Georgia, where in the 1990s, it was very tough", Pachulia said. "I need to play my best match of the tournament if I want to keep having chances to stay in the tournament". The night session features 2017 women's champion Sloane Stephens against No. 15 Elise Mertens, before 2009 men's champion Juan Martin del Potro faces No. 20 Borna Coric.
"I'm very sorry for Dominic", Nadal told a rowdy crowd in Arthur Ashe Stadium. I had a big chance at the beginning of the third, if I make that break, maybe things will be different.
"I have a very good relationship with him".
"It was three very nice experiences and six frightful experiences", Thiem said.
While at Wimbledon there was a pic of the pair kissing with Mladenovic saying: "I have eyes only for him". It has included brief two-set bouts and rugged three-setters, with seven wins for the so-called "King of Clay", and an admirable, tantalizing three victories for his presumed successor.
The Croatian needed a medical timeout in the second set and was then blown away by Del Potro's booming forehand in the third, surrendering the set in just 30 minutes.
A matchup with Thiem would be a rematch of the French Open final, won by Nadal, and their first not on clay.
The Spaniard saved a break point in games nine and 11 but he stood no chance in the tie break, losing it 7-4 following a routine forehand that he sent into the net, handing the set to his rival and setting up a decider after more than three and a half hours of incredible battle! Georgians with the score 0:2 gave magnificent tie-break and remained in the game and in the fourth game after the break immediately again lost his serve and Nadal can't bother. He owns 10 career ATP Tour titles, eight of which have come on clay, two Grand Slam semi-final appearances and one final appearance, all three of which have been at Roland Garros. "Really going to have to focus on my game, continue doing what I'm doing". I'm able to compete with anyone out there, as I showed today.
Del Potro reached the semi-finals for the third time, defeating John Isner 6-7 (5/7), 6-3, 7-6 (7/4), 6-2 and ending American hopes of a first men's champion at the event since 2003.
"First of all, I served really, really well".