Jack Sock wins at Dallas Open, set to face top-seeded Fritz

Wild-card entry Jack Sock opened with a 7-6 (2), 4-6, 6-4 victory over Ilya Ivashka at the Dallas Open, setting up a second-round meeting with top-seeded fellow American Taylor Fritz.

Sock broke Ivashka's serve in the final game to win the match. Ivashka fell behind 2-0 to start the final set but broke Sock to get back on serve.

Down a break early in the second set, Ivashka rallied to force the deciding set after Sock cruised in the first-set tiebreaker.

The eighth-ranked Fritz is back for the second Dallas Open after losing in the semifinals as the top seed in the inaugural edition of the indoor hard-court event last year. Defending champion Reilly Opelka isn't in the field.

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