Nick Kyrgios has sealed Australia's progress to the Davis Cup semi-finals with a straight sets victory over USA's Sam Querrey on Sunday.
Kyrgios, who has polarised Australian tennis lovers, rode a wave of noisy support from a home crowd who were chanting his surname after pulling off a 7-6 (7-4), 6-3, 6-4 win over American substitute Sam Querrey.
Kyrgios won't return to the Davis Cup fold until September, when Australia travel to Belgium for the semi-final.
The often controversial Kyrgios grabbed the point Australia needed on Sunday with a 7-6 (7-4) 6-3 6-4 victory over Sam Querrey, setting up a clash with Belgium for a place in the 2017 final.
10sBalls Top Stories In Case You Missed It The United States and Australia will be facing each other in the Davis Cup competition for the second time in as many years when they meet again during quarterfinal action this week.
Isner said: "Right now, a lot of people could argue he's playing maybe the best tennis he's ever played".
"I'm really proud of both boys, but there's still a bloody long way to go", he said.
"I just feel like I'm becoming a bit more of a professional". Lets hopefully close it out tomorrow, world number 16 Kyrgios said on court after the win.
American Jack Sock was in no mood to talk after his shock Davis Cup defeat to Jordan Thompson on Friday.
In ominous form during last month's U.S. hard-court swing, Kyrgios blasted 20 aces to Isner's 15, largely defusing the towering American's serve to close out a slow-burning singles rubber in 2 hours, 24 minutes.
Late in the first set of the doubles, former Australian Davis Cup victor Todd Woodbridge said on Channel Seven commentary that Sock looked as "flat as he was when he finished the match" on Friday. When I was in the States I always knew I had to come here and play two big matches.
After losing the first set in less than half an hour, the Americans turned the match around by winning 10 of the next 13 games to take a 4-0 lead in the third set and finished it off to take a 2-1 advantage in sets.
"Maybe not the guys in the locker room who have to play against him, but for everyone else involved in the sport, it's a great thing if Nick can find his potential".
Pouille, the world number 17 and his team's top singles player in the absence of Jo-Wilfried Tsonga and Gael Monfils, swept the breaker before dominating the decider.