“I grew up on the clay,” added the Florida native. “He did a really good job of building my foundations when I started, how to get a feel for the surface. We talk every single day, he’s giving me all sorts of advice and helping me a lot.”
At his first-ever Grand Slam showing at this month’s US Open, Korda took a set off world No.10 Denis Shapovalov.
“I don’t think I’m anywhere near my potential, so it made me believe I can keep up with these guys, that I have the level to compete with the top.”
He is just one match away from a second successive major main draw, with Russia’s Aslan Karatsev standing in his way.
Former world No.8 Jack Sock bolstered his momentum with a gutsy 2-6, 6-2, 7-6(1) comeback over Argentine Facundo Bagnis.
“I have to take every opportunity. It’s been a weird year but I have to try and build. This will most likely be my last tournament of the year,” said Sock, who suffered an injury-plagued 2019. “So I have to give it my all here. Right now, singles is the priority, I’m working to get back to the best of my abilities. That’s my goal, the reason why I’m still playing.”
Flick through the record books and Sock reached his first Grand Slam second week at Roland-Garros 2015. Notable victories over Grigor Dimitrov, Pablo Carreno Busta and Borna Coric set up a blockbuster fourth round clash.