Big-serving American John Isner, preparing for his 17th US Open start, said Wednesday in a social media post that he will retire from professional tennis after the final Grand Slam of the year.
"After 17+ years on the ATP Tour, it's time to say goodbye to professional tennis," Isner wrote on X, the platform formerly known as Twitter. "The US Open will be my final event."
"This transition won't be easy but I'm looking forward to every second of it with my amazing family," said Isner, who has four young children with his wife, Maddie. "Time to lace 'em up one last time."
Isner, 38, was a quarter-finalist at Flushing Meadows in 2011 and 2018.
He is the ATP Tour's all-time leader in aces with 14,411 going into the US Open, which starts on Monday.
He was the top-ranked American in the year-end rankings for nine straight years from 2012-2020 and finished inside the top 20 in the world rankings for a decade from 2010-2019.
Isner has won 16 ATP singles titles and eight doubles titles. He was a US Davis Cup regular, posting 15 singles victories and two doubles victories in 18 appearances in the international tournament.
All but two of his ATP singles victories came in the United States, including a 2018 triumph over Alexander Zverev to win the Miami Masters title.
He has won six titles in Atlanta and four in Newport.
He's also known for his marathon first-round Wimbledon clash against Frenchman Nicolas Mahut in 2010. Isner triumphed 6-4, 3-6, 7-6 (7/9), 7-6 (7/3), 70-68 in a match that took 11 hours five minutes of play over three days.
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