ALCARAZ BATTLES PAST CILIC
Spanish teenager Carlos Alcaraz beat 2014 champion Marin Cilic 6-4 3-6 6-4 4-6 6-3 in a late-night thriller on Arthur Ashe Stadium to reach his second straight quarter-final at Flushing Meadows.
Alcaraz will take on Jannik Sinner for a place in the semi-finals.
SINNER PREVAILS OVER IVASHKA
Italy's Jannik Sinner survived a gruelling five-setter against Belarusian Ilya Ivashka, clinching a 6-1 5-7 6-2 4-6 6-3 victory in just under four hours.
Sinner, 21, has now reached the quarter-finals of every Grand Slam tournament and became the youngest man to achieve the feat since Novak Djokovic in 2007/08.
SABALENKA RALLIES PAST COLLINS
Sixth seed Aryna Sabalenka fought back from a set down to beat Australian Open finalist Danielle Collins 3-6 6-3 6-2 and set up a quarter-final against Karolina Pliskova.
PLISKOVA OVERCOMES AZARENKA
Karolina Pliskova beat three-time runner-up Victoria Azarenka 7-5 6-7(5) 6-2 in a three-hour match between two former world number ones.
"On hard courts, her game is super dangerous," Pliskova said. "It's not easy but super happy."
TIAFOE BEATS NADAL TO MOVE INTO QUARTERS
Frances Tiafoe claimed the biggest win of his career when he upset second seed Rafa Nadal 6-4 4-6 6-4 6-3.
Tiafoe, the last American left in the men's draw, will next face Russian Andrey Rublev.
SWIATEK SURVIVES NIEMEIER TEST
Top seed Iga Swiatek dropped a set for the first time in the tournament against Jule Niemeier but fought back to win 2-6 6-4 6-0 to book a spot in the quarter-finals where she will play American eighth seed Jessica Pegula.
"I'm just proud I didn't lose hope," Swiatek said. "I'm pretty glad I used my experience."
PEGULA OUSTS KVITOVA TO MOVE INTO QUARTERS
Jessica Pegula became the second American after Coco Gauff to move into the quarter-finals after the eighth seed beat Czech Republic's Petra Kvitova 6-3 6-2.
RUBLEV DISPATCHES NORRIE IN STRAIGHT SETS
Russian Andrey Rublev downed British seventh seed Cameron Norrie 6-4 6-4 6-4 to move into the quarter-finals of a Grand Slam for the sixth time in his career.
The ninth-seeded Russian, who has never reached the semis at a major, will face either Rafa Nadal or Frances Tiafoe.
