HOUSTON (AP) Fourth-seeded defending champion Jack Sock beat top-seeded John Isner 7-6 (4), 6-3 on Saturday in an all-American semifinal in the U.S. Men's Clay Court Championship. Sock will face ...

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 ...

MEMPHIS, Tennesee (AP)—Top-seed John Isner, playing for the first time ... beating compatriot Jack Sock 6-3, 2-6, 6-4, while Ukraine’s Sergiy Stakhovsky downed American Robert Kendrick 6-3 ...

Instead of Sam Querrey, who upset No. 1 Novak Djokovic en route to making the final eight at Wimbledon, the U.S. roster includes John Isner and Jack Sock in singles, and twins Bob and Mike Bryan ...

Cilic got in started, beating John Isner 7-6 (11-9), 6-3, 6-4. Coric then topped Jack Sock 6-4, 3-6, 6-3, 6-4. The U.S. lost for the fourth time in 161 tries when leading 2-0 lead in a Davis Cup tie.

WHITE PLAINS, N.Y. (AP) — Sam Querrey, John Isner ... No. 9 Jack Sock, was not included in captain Jim Courier's team, which was announced Tuesday. Sock, No. 16 Isner and No. 48 Steve Johnson ...

American No. 1 Jack Sock will play Australia's Jordan Thompson to open their World Group quarterfinal in Brisbane on Friday, followed by Nick Kyrgios' match against John Isner. The match will be ...

ROME (AP) — At 37, John Isner is just happy ... with Andreescu ahead 6-2, 2-1. Isner recently won doubles titles at Indian Wells and Miami with partners Jack Sock and Hubert Hurkacz, respectively.