Top-seeded Stefanos Tsitsipas of Greece outserved big-hitting American John Isner on Wednesday en route to a 6-3, 6-2 win in the second round of the Abierto Mexicano Telcel in Acapulco, Mexico.
Tsitsipas won 24 of his 25 first-serve points and never faced a break point. Isner won just 19 of 32 first-serve points and had his serve broken three times.
Second-seeded Alexander Zverev of Germany topped Serbia’s Laslo Djere 6-4, 6-3, and fifth-seeded Grigor Dimitrov of Bulgaria, seventh-seeded Felix Auger-Aliassime of Canada and eighth-seeded Casper Ruud of Norway also advanced to the quarterfinals.
Germany’s Dominik Koepfer upset fourth-seeded Milos Raonic 6-4, 6-2, and Great Britain’s Cameron Norrie eliminated sixth-seeded Fabio Fognini of Italy 6-4, 6-4. In the lone match featuring two unseeded players, Italy’s Lorenzo Musetti rallied past the United States’ Frances Tiafoe, 2-6, 6-3, 7-6 (1).
Dubai Duty Free Tennis Championships
Second-seeded Andrey Rublev of Russia needed just 64 minutes to rout 15th-seeded Taylor Fritz of the United States 6-3, 6-1 in the third round at Dubai, United Arab Emirates.