Has anyone else been really impressed by the way he is playing at this open? If he works on his serve a little more I think he has some incredible potential.

He needs to work on his attitude, for lack of a better word.
If he loess one point, he gets too aggravated.

Well yeah he does get emotional, but I feel like he is able to use that emotion to play better. I mean he was down multiple match points to Federer, clearly aggravated, but he got his shit together like a pro and came back.

he needs to stop being so negative when he loses certain points

in his defense for tonight he clearly hasn't had any legs left from the early part of the 3rd set on

Yeah I agree with that. He isn't playing now like he was in the second set. That was some amazing play.

double break, this is over

Yup.. I wish he had more rest from the Federer game.

yes for sure. Djocovic is tired and two breaks behind. Nervertheless very well played !

Nadal's serves are just ridiculous.

he's still slugging away down 2 breaks