The title of the clip suggests Fed being over-confident here.
He looks almost like an astronaut in a hard-hooded jumper; he lowered the hood just in passing, while he's ready to jump on the launchpad. Is it really that cold in Germany right now?
But in the interview, Fed shows the prescribed amount of humbleness to keep his image spotless: "it's not gonna be easy", "I must take it one at a time", "very important first match", etc.Recently, he even learned to add the word "maybe" to his public opinions: "maybe I had more chances than him", "maybe I was better at the net", etc., to soften his bragging. Compare that to his comments from 14-15y ago: "I don't need to play at my top level to beat him" when asked what he thinks of his next opponent (that was Agassi AO 2004). From that awkward moment, years of mental practice how to stay in the spotlight and of training in PR rendered him as smooth and eloquent as one can only imagine.