Isner, Opelka set up all-American Houston final

NEW YORK: The fourth-seeded Isner, who won the Houston title in 2013, hit 17 aces on Saturday to eliminate reigning champion Cristian Garin 4-6, 6-3, 6-4 in the semifinals of US Men Clay Court Championship. The third-seeded Opelka had 21 aces while beating Nick Kyrgios 6-3, 7-5.

The final will be the sixth career meeting between the 24-year-old Opelka, who is listed by the ATP at 6-foot-11, and the 36-year-old Isner, who is listed at 6-10.

Opelka leads 4-1 head-to-head, with four victories in a row.

The last 12 sets they contested all went to tiebreakers, including one Isner called "ridiculous" on Saturday. That's because it went to 24-22 in the semifinals at Dallas in February — the longest tiebreaker in an ATP match since 1990. Opelka landed 39 aces in that win, 18 more than Isner. Agencies

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