Good on him. Isn't everyone sick of the marketing friendly cookie cutter responses from everyone. Let's not hang the guy cos he shows a bit of humanity. They don't like each other so let him razz it up a bit. It's not like the sport's turning into boxing with torrents of silly trash talk before every match. A tiny bit of pepper in the mix is fine by me.
“There is no best. There is just the discussion of who is best. Federer, he will always be in the first part of such a discussion.” Rino Tommasi