ST. PETERSBURG, Russia (AP) - Top-seeded Daniil Medvedev recovered from a shaky start to begin his defense of the St. Petersburg Open title with a 3-6, 6-3, 6-0 win over Richard Gasquet on Wednesday.
Medvedev hit 22 aces to secure his first win since losing to Dominic Thiem in the U.S. Open semifinals, having lost in the first round in Hamburg and at the French Open.
Medvedev set up a second-round match with Reilly Opelka, who earned a 3-6, 7-6 (5), 6-2 win over qualifier Nino Serdarusic.
Stan Wawrinka booked his spot in the quarterfinals with a 6-1, 3-6, 6-3 win over Evgeny Donskoy, a wild-card entry who has now competed in the St. Petersburg tournament 12 times without ever getting past the second round.
Wawrinka could next meet second-seeded Canadian Denis Shapovalov, who needed just 1 hour, 3 minutes to wrap up his 6-2, 6-3 first-round win over lucky loser Viktor Troicki. Shapovalov was coming off a second-round loss at the French Open. He takes on qualifier Ilya Ivashka in the second round for a quarterfinal spot against Wawrinka.
Ugo Humbert will play third-seeded Andrey Rublev in the second round after Humbert defeated qualifier Pavel Kotov 4-6, 6-2, 6-3.
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