The United States lifted its second United Cup mixed team tournament title in three years Sunday after beating Poland 2-0, with Coco Gauff and Taylor Fritz both winning their singles matches. The top seed in the $10 million tournament that began with 18 nations in contention clinched the trophy when Fritz defeated Hubert Hurkacz, 6-4, 5-7, 7-6 (4), after Gauff outclassed Iga Swiatek, 6-4, 6-4, in Sydney. The Americans also won the 2023 title in the inaugural edition of the tournament, which serves as a tune-up event for the Australian Open. With the second singles contest locked at one set apiece, Fritz raised his level at 3-3 in the tiebreak of the decider to see off Hurkacz and spark huge celebrations. Gauff earlier stepped up preparations for the Australian Open, the year's first major which begins next Sunday, with a second consecutive victory over world No. 2 Swiatek in a blockbuster showdown that gave fans at the Ken Rosewall Arena their...