Dominic Thiem advanced to his second Grand Slam final of 2020, digging out a win over third seeded Russian Daniil Medvedev 6-2 7-6(7) 7-6(5) at the U.S. Open on Friday.
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Thiem seized the early momentum inside Arthur Ashe Stadium, handily carrying the first set without dropping a single first-serve point.
But a double-fault and a forehand error saw him hand Medvedev the break and the early lead in the second set.
The Australian Open runner-up spent the remainder of the frame playing catch-up, converting on a critical break to level scores 5-5 before the 24-year-old Russian dragged it into a tie-break.
The 27-year-old Austrian, who had a trainer examine his ankle before the third set, slipped and fell twice in the match, unfurling a string of frustrated exclamations in the second incident.
But he regained his cool to survive yet another tie-break to clinch the affair with a power forehand and a roar.