| Isner relied on his power serve, delivering 38 
				aces in the match to surpass Roger Federer with the second-most 
				career aces, ATP statistics showed.
 Isner appeared to feed off the crowd's energy in the fifth set 
				and thanked them for helping him across the line.
 
 "This right here is what the U.S. Open is all about," said 
				Isner. "I couldn't have won this match without the support of 
				you guys," he added, gesturing to the crowd.
 
 Isner later told reporters that the match had been a struggle 
				"from the get-go" but that overall he was pleased with his 
				performance throughout the year.
 
 "I'm certainly very confident. I've had a very good year," Isner 
				said. "I mean, probably the best year of my career. Doing that 
				at 33 is pretty cool."
 
 The three hour and 38-minute match was comparatively light work 
				for marathon man Isner, who in July lost a six hour and 
				36-minute Wimbledon semi-final to South Africa's Kevin Anderson 
				and in 2010 won an 11 hour and five-minute match against Nicolas 
				Mahut at the All England Club.
 
 Isner next faces Serbian Dusan Lajovic, who beat Briton Cameron 
				Norrie, for a place in the fourth round.
 
 (Editing by Peter Rutherford)
 
			[© 2018 Thomson Reuters. All rights 
				reserved.] Copyright 2018 Reuters. All rights reserved. This material may not be published, 
			broadcast, rewritten or redistributed.  
				Thompson Reuters is solely responsible for this content. 
				 |  |