For superb servers Milos Raonic and John Isner, will the US Open be closing time? “I have to have a conversation with myself,” said the Canadian, who reminded everyone of his serving strength ...

The towering John Isner, whose dominating serve helped change Grand Slam tennis, is retiring. His career was impressive, and underappreciated.

After Isner made his point, they decided to directly name the worst practice partner. Johnson and Querrey instantly named ...

John Isner will retire from professional tennis after playing at the U.S. Open, he announced Wednesday, bringing an end to a career that included one Grand Slam semifinal appearance and a victory ...

John Isner, a former world No. 8 tennis player and holder of the ATP record for the fastest official serve, has recently shown his excitement for pickleball. Isner, who was initially unsure about ...

The towering John Isner, whose dominating serve helped change Grand Slam tennis, is retiring. His career was impressive, and underappreciated.

John Isner's 17-year pro tennis career came to an end this week following his loss to fellow American Michael Mmoh in the second round of the U.S. Open.

NBC 5 caught up with John Isner on a local tennis court playing for fun with his son Hobbs, the first time he’s held a racket since his last match at the U.S. Open more than a month ago.