he definitely has work to do. fitness is one area where he needs significant work.
If he can play 3 days in a row like he did in DC recently, win a 5 set match on Friday, lose a 5 set match on Saturday, and win
a 4 set match on Sunday, I don't think his fitness needs significant work. He's been working on it all year long.
gulbis just doesn't have the same ambition as other players do from poorer backgrounds. It's like seeing Richie Rich occupy his idle time.