Rogers Cup: Isner, Tomic advance as Kyrgios suffers shock loss

Nick Kyrgios was stunned by Canadian teenager Denis Shapovalov, a wildcard, in three sets. John Isner and Bernard Tomic, however, sailed through to the second round.

American John Isner in action against Dudi Sela in the Rogers Cup.

John Isner and Bernard Tomic claimed first-round wins at the Rogers Cup, as Nick Kyrgios suffered a shock loss.

Kyrgios was stunned by Canadian teenager Denis Shapovalov, a wildcard, in three sets.

American Isner recovered from a slow start, firing down 15 aces in a 4-6, 6-3, 6-2 win over Dudi Sela. On a warm day in Toronto, Tomic was also a winner, beating Alejandro Gonzalez 6-4, 7-6 (7-1).

Tomic's compatriot Kyrgios, however, had no such luck, slumping to a 7-6 (7-2), 3-6, 6-3 defeat to 17-year-old World No. 370 Shapovalov. Kyrgios, the 11th seed, was the only seeded player to depart.

Kyrgios was all praise for Shapovalov, the Wimbledon junior champion, but was nursing an injury. He came to the post-match press conference with a big bag of ice strapped to his knee. "He played great and he earned it."

Jack Sock and Grigor Dimitrov were the other prominent winners on the day. Sock was far too good for fellow American Denis Kudla, winning 6-2, 6-2, while Dimitrov, who has endured a below-par year, fought his way past Yuchi Sugita 5-7, 7-6 (7-5), 6-4. The Bulgarian trailed 5-2 in the second-set tie-break before winning five straight points.

Canadian Peter Polansky defeated Tim Smyczek 4-6, 6-3, 6-0.