(Photo credit: David Gonzales-Imagn Images)

Taylor Fritz saved a match point against Spain's Jaume Munar and the United States rallied to beat Spain 2-1 on Monday to reach the United Cup quarterfinals in Australia.

After Coco Gauff suffered a stunning three-set loss to Jessica Bouzas Maneiro in the opener, Fritz leveled the match in Perth with a 7-6 (4), 3-6, 7-6 (6) defeat of Munar. Gauff and Christian Harrison clinched the Group A victory with a 7-6 (5), 6-0 win against Yvonne Cavalle-Reimers and Inigo Cervantes in mixed doubles.

In Sydney, Iga Swiatek and Hubert Hurkacz led Poland over Germany in Group F and the Czech Republic posted a 3-0 win against Norway in Group D. Greece leads Great Britain 2-0 in Group E (Perth) after Stefanos Tsitsipas rallied to beat Bily Harris 4-6, 6-1, 7-6 (4) and Maria Sakkari defeated Emma Raducanu in three sets.

Brisbane International

Top-seeded Daniil Medvedev of Russia cruised to a 6-2, 6-3 win against Hungary's Marton Fucsovics in 70 minutes in the opening round in Australia.

Medvedev converted six of 10 break points and took advantage of 26 unforced errors from Fucsovics to set up a second-round clash with Frances Tiafoe.

No. 3 seed Jiri Lehecka outlasted fellow Czech Tomas Machac 6-4, 6-7 (5), 6-2 in the only other match involving a seeded player. Also advancing were Americans Sebastian Korda, Alex Michelsen and Reilly Opelka, French qualifier Quentin Halys and lucky loser Kamil Majchrzak of Poland.

Hong Kong Tennis Open

No. 8 seed Nuno Borges of Portugal advanced to the second round with a 6-4, 6-3 victory against Damir Dzumhur of Bosnia.

Borges struck five aces and converted five of eight break opportunities in the 76-minute win, finishing with twice as many winners (18) as Dzumhur (nine). Up next for Borges is Croatian Marin Cilic, a 6-3, 6-2 winner against France's Adrian Mannarino.

Chinese wild card Yibing Wu won his opening match 6-4, 6-2 against Hungary's Fabian Marozsan and will face No. 3 seed Andrey Rublev of Russia in the Round of 16.

--Field Level Media