Greek fourth seed Tsitsipas was behind one to two at the conclusion of the third set, but fought back to defeat No.20 Fritz of the United States 4-6, 6-4, 4-6, 6-3, 6-4 in the late-night match that lasted three hours and 23 minutes. In the final-eight stage, the 23-year-old will go up against 11th seed Jannik Sinner (Italy), who accounted for local hope Alex de Minaur in straight sets (7-6(3), 6-3, 6-4) earlier in the day.