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NEW YORK - AUGUST 27, 2015: Professional Tennis Player John Isner Of United States Practices For US Open 2015 At Billie Jean King National Tennis Center In New York Stock Photo, Picture
![US Open: John Isner bids farewell to singles tennis after losing to Michael Mmoh in five-set thriller | CNN US Open: John Isner bids farewell to singles tennis after losing to Michael Mmoh in five-set thriller | CNN](https://media.cnn.com/api/v1/images/stellar/prod/230831163141-02-us-open-john-isner-retire-tennis-spt-intl.jpg?c=16x9&q=h_720,w_1280,c_fill)
US Open: John Isner bids farewell to singles tennis after losing to Michael Mmoh in five-set thriller | CNN
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The best photos of John Isner through the years at the US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![John Isner joins talented teenagers among 2023 US Open men's wild cards - Official Site of the 2023 US Open Tennis Championships - A USTA Event John Isner joins talented teenagers among 2023 US Open men's wild cards - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_GettyImages-1573844905.jpg)
John Isner joins talented teenagers among 2023 US Open men's wild cards - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![John Isner announces he will retire from tennis after US Open: He played in the sport's longest match | Marca John Isner announces he will retire from tennis after US Open: He played in the sport's longest match | Marca](https://e00-marca.uecdn.es/assets/multimedia/imagenes/2023/08/24/16928753875569.jpg)