Like he has done so many times before, John Isner went the distance Thursday, August 31, but could not stave off the end of his singles career.
The 38-year-old, who announced on Aug. 23 he would retire at the end of his run at this year’s U.S. Open, dropped a five-set thriller in the second round against fellow American Michael Mmoh, who pulled off the 3–6, 4–6, 7–6 (3), 6–4, 7–6 (7) comeback in New York.
