Top seed and defending champion Rafael Nadal needed nearly five hours to defeat ninth seed Dominic Thiem in a deciding tie-break.
The world No. 1 will now play Juan Martin del Potro on Friday for a place in Sunday’s final.
Here’s how Twitter reacted:
— Boris Becker (@TheBorisBecker) September 5, 2018
Just recovering from the @ThiemDomi @RafaelNadal match last night. One of the best matches Ive ever seen in my life. The fitness level and mental toughness in those conditions for 4:45 mins is just crazy. Absolute epic!
— Mardy Fish (@MardyFish) September 5, 2018
— Kristina Mladenovic (@KikiMladenovic) September 5, 2018
— diego schwartzman (@dieschwartzman) September 5, 2018
.@usopen Absolutely incredible tennis last night. Phenomenal quality! Almost 5 hours top class tennis. Both @RafaelNadal and @ThiemDomi showed some endurance and speed of another level. Amazing battle of two real warriors! #USOpen #Nadal #Thiem
— Nicolas Kiefer (@Nicolas_Kiefer) September 5, 2018
This Nadal Thiem match is amazing!
— Dirk Nowitzki (@swish41) September 5, 2018
Iron Man Rafa💪 winning that third set from 3-5 was massive. so tough when it REALLY matters, insane match from both!! https://t.co/xxQldaXdiz
— Pat Cash (@TheRealPatCash) September 5, 2018
What’s an incredible match between @RafaelNadal vs @ThiemDomi . Rafa has to be the greatest competitor in our sport ever. It’s amazing how he can turn around and win any match. Thank goodness for a final set tiebreaker and 2 days off before the semifinals on Friday.
— Greg Rusedski (@GregRusedski1) September 5, 2018
— Rob Koenig (@RobKoenigTennis) September 5, 2018
We know the @RafaelNadal game is amazing, but this off-the-chart, positive attitude is a true inspiration! Rafa’s love of the game, his zest for life, his humbleness make him a terrific role model. https://t.co/sDkAVsvnjq
— Tracy Austin (@thetracyaustin) September 5, 2018
Q lindo q es el tenis la Puta Madre !!!!! @usopen ❤️❤️❤️
— Juan Monaco (@picomonaco) September 5, 2018
What a match last night!! Congrats to @ThiemDomi and @RafaelNadal on a spectacular display of talent, determination, sportsmanship, and exceptional tennis. Both gave everything they had. Both are winnners. Rafa’s fighting spirit is a wonder to behold. What a competitor!
— Nick Bollettieri (@NickBollettieri) September 5, 2018
thank you guys for 4:45h pure class ! the level of tennis you produced was out of this world. definitly one of the best matches i‘ve seen in my life ! 2 winners and one of them moved to… https://t.co/zlmJabDpz0
— Julian Knowle (@Jknowle) September 5, 2018
So glad I witnessed almost FIVE HOURS of classic tennis. Thiem and Nadal. One for the ages. #USOpen
— Rob Lowe (@RobLowe) September 5, 2018
— Michael Russell (@MRusselltennis) September 5, 2018
— Wanda Sykes (@iamwandasykes) September 5, 2018
— Marcus Willis (@Willbomb90) September 5, 2018
Last night and this morning @usopen we were treating to an epic five set match ending with tie breaker by @ThiemDomi @RafaelNadal that will be remembered as the Blake Agassi, Connors Krickstein of this generation. It did finish too late for most. @espn
— Pam Shriver (@PHShriver) September 5, 2018
— Ed Werder (@EdwerderRFA) September 5, 2018
Brilliant 5 set tennis on the full limiter @usopen . The two men were bulls out there, relentless.
— roger rasheed (@roger_rasheed) September 5, 2018
— Dominic Thiem (@ThiemDomi) September 5, 2018
— Rafa Nadal (@RafaelNadal) September 5, 2018