Querrey and Federer both moved into the third round at Wimbledon with straight-sets wins on day three.
Querrey overcame Sergiy Stakhovsky 7-6 6-3 6-3 while Federer dispatched Lukas Lacko 6-4 6-4 6-1.
The American, who reached the semis at SW19 in 2017, is a huge Federer fan and spoke afterwards of what makes the 20-time Grand Slam champion so good.
“I love watching him play like everyone else,” Querrey said.
“He does things that people like me I feel like I can’t do. There is a lot of times you’ll be with your coach or even with friends and there will be a short ball or whatever and you miss it.
“They’re like ‘Do it like Roger does it’. Well, I can’t do that.
“He’s amazing to watch, but he does things that I feel like I can’t do all the time. So I don’t try to model my game after his.
“He realises what are short balls, I think he can kind of shrink the court better than other guys.
“If you leave the ball short he instantly steps up, hits it, and gets you running. That’s really difficult to do and I don’t think a lot of people realise that.
“I feel like that’s really kind of what separates him from everyone else.”
Querrey’s win booked him a third-round meeting with Gael Monfils. The pair have met just twice before with the Frenchman coming out on top on both occasions.
“He has a big serve, which is tough. You know, his movement is obviously incredible. For a big guy he kind of backs up and beats you with movement and shot making,” Querrey said.
“Those are kind of his best assets. I feel like he’s a guy that can hit passing shots from 10 feet behind the baseline. He can win a lot of those, you know, cat-and-mouse points where you’re running side to side.
“He’s going to win some of those points on Friday, and I’ll be ready for that. I’m just going to hopefully keep coming at him with big serves, big forehands, and big backhands.”