Over the last couple years, we’ve seen Ivo Karlovic make himself virtually unbreakable, while Sam Querrey has hit 10 aces in a row. But the serve du jour belongs to American John Isner ...

John Isner, Ivo Karlovic and Reilly Opelka are all standing tall this week in Memphis, with all three appearing in the second round. It isn’t too often that you can find a tennis player taller ...

It wasn’t, when it started, an important tennis match: John Isner ... any other match 215: Aces. Isner hit 112, Mahut 103. The previous record had been 78 by Ivo Karlovic 183: Total games ...

John Isner hit 12 aces during his 3-6, 6-4, 6-4 loss to Gael Monfils in the Montpellier quarterfinals, bringing his total for the season to 1,011. Isner joins Goran Ivanisevic, Ivo Karlovic ...

But those banner ace days are relatively few and far between when you pore over the statistics produced by the likes of the prominent big men afoot today, like Marin Cilic, John Isner, Gael ...

MASON, Ohio (AP) -- Eleventh-seeded John Isner reached the second round of the ... whose 7-6 (5), 6-4 upset of Ivo Karlovic was the German's first win in seven matches against the 28th-ranked ...

WHITE PLAINS, N.Y. (AP) — John Isner, Jack Sock, Steve Johnson and Sam Querrey have been named to the U.S. Davis Cup roster that will face a Switzerland team that will not have Roger Federer or ...