American Sebastian Korda reached the quarter-finals of a Grand Slam for the first time on Sunday after defeating Poland’s Hubert Hurkacz 3-6 6-3 6-2 1-6 7-6 (10-7) at the Australian Open.

Korda, who dumped 2021 and 2022 runner-up Daniil Medvedev out in the third round, got off to a shaky start on Rod Laver Arena against Hurkacz but the 29th seed bounced back to take the second and third sets.

Hurkacz, seeded 10th, grabbed the fourth set before the decider went to a tie-breaker, where Korda won six consecutive points and wrapped up the victory with a backhand winner.

The 22-year-old will face Karen Khachanov in the quarter-finals after the Russian knocked out Japan’s Yoshihito Nishioka in straight sets.