NEW YORK -- Playing an opponent also coming off a five-set match, American John Isner advanced in four sets in the second round of the U.S. Open.
The 20th-seeded Isner beat Steve Darcis 6-3, 6-4, 6-7 (10), 6-3 in 2 hours, 54 minutes Wednesday. Both rallied from two sets down in the first round: Isner spent 3 hours, 27 minutes on court Monday, while Darcis needed 4 hours, 11 minutes.
Isner had a chance to close out the victory in the third-set tiebreaker but wasted four match points.
The 106th-ranked Darcis also faced the extra fatigue of going through qualifying to make the main draw.
Isner improved to 9-0 in U.S. Open second-round matches. He had 38 aces Wednesday, when he received treatment on his right knee and for blisters on his foot.
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