The world No. 8 fell to 58th-ranked Marozsan 5-7, 6-3, 3-6 after a match that lasted one hour and 58 minutes at Victoria Park. Marozsan will face China's Shang Juncheng in the quarterfinals. 19-year-old Shang advanced comfortably, defeating seventh seed Pedro Martinez of Spain 6-3, 6-1.