Reigning Olympic champion Alexander Zverev saved two match points in a remarkable comeback to win his singles tie in an epic three-setter and then helped clinch the United Cup final for Germany in the deciding mixed doubles match on Sunday. The sixth-ranked Zverev showed plenty of stamina in returning from the previous night's early morning finish to rally from a set down and two match points and defeat the No. 9-ranked Hurkacz 6-7 (3-7), 7-6 (8-6), 6-4 in a three-hour epic at Ken Rosewall Arena in Sydney. Then, playing his sixth match in three days, including a 2.20 AM local time finish on Sunday in Germany's marathon semifinal victory over Australia, Zverev partnered with Laura Siegemund to win the mixed doubles 6-4, 5-7, 10-4 in a super tiebreaker against Iga Swiatek and Hurkacz. Earlier, top-ranked woman Swiatek had given Poland an early lead with a straight-sets win against Angelique Kerber. The 22-year-old Swiatek beat Kerber 6-3, 6-0 in 70 minutes to stretch her win streak to 16 matches, after the four-time major winner finished 2023 with title wins at the China Open and the WTA Finals in Mexico.