"We were both probably dying, at least I felt my knees shaking, but I tried to not show that I'm tired" - Casper Ruud on why he acted nonchalant after the 55-shot rally against Karen Khachanov in US Open SF
"I didn't look at him after we shook hands, I saw after the racquets were flying" - Karen Khachanov on Nick Kyrgios smashing his racquets following US Open quarterfinal defeat
"I think pretty much every other tournament is a waste of time; you should just show up at a Grand Slam" - Nick Kyrgios after US Open quarterfinal loss
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