INDIAN WELLS, CALIF.—What’s it like to have 6-foot-9 John Isner toss the ball high over his head and reach up to serve it to you? I got as close as a non-opponent is going to get today.

The big-serving John Isner says he must serve huge if he is going to have any chance against Roger Federer in the United States' Davis Cup tie against Switzerland on Friday. "In any match ...

John Isner took the first set against Juan ... forehand winner in game seven when applying pressure to the Isner serve that went unrewarded, Del Potro carved out the only break point of the ...

John Isner has the advantage in the fight thanks to his massive serve, but Adrian Mannarino is a good player in his own right and might not give up lightly. Although the American is the favorite ...