Borna Coric pulled off a great escape, avoiding six match points while rallying to beat fourth-seeded Stefanos Tsitsipas and advance to the fourth round of the U.S. Open.
Coric's 6-7 (2), 6-4, 4-6, 7-5, 7-6 (4) victory was his second straight that went to five sets and lasted more than 4 hours.
The No. 27 seed got treatment on his right shoulder and neck after the first set. Down 5-1 in the fourth set, he broke Tsitsipas three straight times, fighting off six break points.
Coric was coming off a five-set win over Juan Ignacio Londero in which he also rallied after falling behind 2-1 in sets. He'll play Jordan Thompson, who has reached the fourth round of a Grand Slam event for the first time.