Andy Murray ‘quite close’ to singles return
The 32-year-old British star, who thought he could be forced into retirement before undergoing hip surgery in January, returned to the court in June.
The 32-year-old British star, who thought he could be forced into retirement before undergoing hip surgery in January, returned to the court in June.
Germany's third-ranked Zverev, seeking his fifth final of the season and third title of the year after Munich and Madrid.
Murray said he will be preparing for the Cincinnati Open.
"For me, this could very well be a good loss. I need a little rest," Isner said.
Former world number one Murray, now ranked 832nd, outlasted his 18th-ranked rival.
Paire lost to Cypriot Marcos Baghdatis 6-3, 3-6, 6-2 on Tuesday at the hardcourt tuneup event for the US Open.
Stephens, who won her first WTA title at Washington in 2015, fired her sixth ace on her first match-point chance to advance after one hour and 53 minutes.