John Isner is retiring from tennis after the US Open. He played in the sport’s longest match

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 in the longest match in the sport's history. “This transition won't be easy but I'm looking forward to every second of it with my amazing family,” the big-serving, 6-foot-10 (2.08-meter) American wrote in a posting on social media that included a photo showing Isner, his wife and their four children. “Time to lace ‘em up one last time,” the 38-year-old Isner said, referring to the year’s last major tournament, which begins in New York on Monday.