A 6-foot-10 American, Isner had announced he would retire following the tournament. Losses in singles and doubles on Thursday ended a career known for powerful serves and a marathon match.
John Isner Says Goodbye to Pro Tennis at the U.S. Open
A 6-foot-10 American, Isner had announced he would retire following the tournament. Losses in singles and doubles on Thursday ended a career known for powerful serves and a marathon match.
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