MONTREAL (AP) Second-seeded Dominic Thiem advanced to the quarterfinals of the Rogers Cup with a 7-6 (7), 6-4 victory over Marin Cilic on Thursday.
Thiem fired 11 aces and saved all nine break points against Cilic, while breaking the Croatian once in four opportunities.
The fourth-ranked Thiem is coming off a victory on clay at the Generali Open in his native Austria. He has three titles in 2019. This is his first hard-court event since March.
Thiem will next face eight-seeded Daniil Medvedev of Russia, who beat Cristian Garin of Chile 6-3, 6-3.
Top-seeded Rafael Nadal and Canadian Felix Auger-Aliassime, celebrating his 19th birthday, were in action later Thursday.