Tsitsipas battles for win

Third-ranked Stefanos Tsitsipas beat Chilean qualifier Cristian Garin 6-3, 4-6, 6-4 at the Miami Open on Monday, the Greek’s first on-court action after a bye and walkover in the opening rounds. Tsitsipas had 12 aces in his first victory since an opening-round win in Rotterdam over Emil Ruusuvuori in mid-February. He ran his record to 3-0 against Garin, who was attempting to become the first Chilean player to reach the fourth round in Miami since Fernando Gonzalez in 2010. After losing the first set, Garin won eight straight points late in the second to force a decisive third. Tsitsipas had a critical break at 4-4 in the final set and advanced. Tsitsipas will take on Karen Khachanov, who eased past Czech Jiri Lehecka 6-2, 6-4, in a round-of-16 match today. In other action, Francisco Cerundolo of Argentina surprised sixth-ranked and fifth-seeded Felix Auger-Aliassime of Canada 6-2, 7-5. Cerundolo, a semifinalist in Miami last year, has faced Auger-Aliassime in third-round matches of every ATP Masters 1000 or Grand Slam event this year — all won by the Canadian. In women’s action, American Jessica Pegula, the No. 3 seed, dispatched Poland’s Magda Linette 6-1, 7-5. She advanced to face 27th-seeded Anastasia Potapova, a 6-4, 7-6 (7) winner over Qinwen Zheng, in today’s quarterfinals. In a fourth-round matches, 10th-seeded Elena Rybakina fired off 10 aces and made short work of Elise Mertens of Belgium 6-4, 6-3. Rybakina will face Martina Trevisan of Italy in the quarterfinals. Trevisan eliminated Latvia’s Jelena Ostapenko 6-3, 6-3. Also, Petra Kvitova beat Varvara Gracheva 7-5, 7-6 (7), and Sorana Cirstea topped Marketa Vondrousova 7-6 (7), 6-4.