PARIS (AP) — John Isner stayed on track for the last spot at the ATP Finals by beating Juan Martin del Potro 6-4, 6-7 (5), 6-4 in the Paris Masters quarterfinals on Friday.
The American was the runner-up last year and needs to win the tournament to reach the finals in London this month.
“I’ve given myself a pretty good shot to qualify,” Isner said. “But it’s going to be very tough.”
Meanwhile, top-ranked Rafael Nadal pulled out with a right knee injury, and hopes to be fit to lead the London field.
The loss ended del Potro’s hopes of reaching London. The Argentine needed to win to guarantee his place.
“I’m exhausted. But I did all my effort, I don’t have anything to (reproach) myself (for),” del Potro said. “I’ve been playing three sets today without legs, without energy. Now it’s time to get home and enjoy…