Let's not forget these ones:
Federer on Nadal:
"He's quite one-dimensional with his game," Federer said of Nadal’s game. "I thought I actually saw the way I should play against him. The more I play him, the better it is for me." (2006)
"The French Open is always going to be hard as long as Rafa Nadal is around," says the 32-year-old Swiss. "But on the other surfaces, if I am playing well, it's more in my racquet than in anybody else's racquet."
Federer on Djokovic:
"I played four times against him. Never lost. [...] But, yeah, I mean, like himself, he says nothing outrageous in his game. Always pretty predictable, which is a good thing." (2007)
Asked about the quite remarkable forehand winner Djokovic hit to save match point, Federer reckoned the Serb did not look at that point like someone "who believes much anymore in winning. To lose against someone like that, it's very disappointing, because you feel like he was mentally out of it already. Just gets the lucky shot at the end, and off you go." (2011)
BONUS - Federer on himself:
"My mental toughness has always been overshadowed by my virtuosity, my shot-making, my technique, my grace." (2017)
So Zvepush will win 20 slems? Damn it!