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.

At 33 years old, John Isner is playing the best tennis of his life. Earlier this month, he advanced to his first Wimbledon semifinal, before falling to Kevin Anderson in a marathon 26-24 deciding ...

Former American tennis player John Isner shares his well-wishes for Novak Djokovic in the 2025 season. The big-serving American believes the Serb has what it takes to win big titles again this year.