Sock needs to be honest with himself: He is not a star, will never be one, but he could be a consistent top 20 performer who could sneak into the top 10 for a bit and win a bunch of ATP 250s and 500s and, if he catches fire at the right time, could possibly win a Masters. But he plays like he is a soon-to-be elite and takes too many chances, in my opinion.
I'm really curious to see Rafa play Andy and Novak. His game plan seems to be the same: wear down the opponent, force errors, and occasionally strike for a winner. But what seemed to be clear is that it no longer works against Roger, at least when Roger is playing his best (he seems to have slipped a half-step in Miami, so I might favor Rafa in a matchup). But I'm curious if Rafa's current approach and level will fly with Novak and Andy. I'm not sure that it will. In other words, there's a chance that Rafa is the new Ferrer: Dangerous, but more of a gatekeeper to the true elite than one of the elite. I'm not saying this is true, just that we need to see him play Novak and Andy to get a better sense of where he's at.