Australian Open: Sebastian Korda, 1998 Aus Open champ Petr's son, reaches first Grand Slam quarterfinal

Australian Open 2023: Sebastian Korda reached his first Grand Slam quarter-final on Sunday. He is the son of 1998 Aus Open champ Petr.

Sebastian Korda reached the first Grand Slam quarterfinal of his career by beating 10th-seeded Hubert Hurkacz in a fifth-set tiebreaker at the Australian Open on Sunday. Korda’s 3-6, 6-3, 6-2, 1-6, 7-6 (10-7) victory over Hurkacz followed up a third-round win against 2021 U.S. Open champion Daniil Medvedev, who had reached the final at Melbourne Park each of the past two years.

Sebastian Korda of the U.S. celebrates after defeating Hubert Hurkacz of Poland during their fourth round match at the Australian Open tennis championship in Melbourne. (AP)

Korda is a 22-year-old American whose father, Petr, won the 1998 championship at the tournament. Korda’s mother was a professional tennis player, too, and his two older sisters play pro golf. The 29th-seeded Korda will face 18th-seeded Karen Khachanov for a spot in the semifinals.

Khachanov eliminated Yoshihito Nishioka in straight sets earlier Sunday. The men's fourth-rounders also scheduled for Sunday: No. 3 Stefanos Tsitsipas vs. No. 15 Jannik Sinner, and No. 6 Felix Auger-Aliassime vs. unseeded Jiri Lehecka.