Much more upside to his game than any of the young candidates to challenge the Big 5 (current slam winners club). His growth curve, from juniors to ATP, was very shallow until the last half of '12 but it all seems to be gelling now.
His recovery from two sets down last night speaks loudly of his mental strength. Granted, it was a hole partly dug by himself but a lot of youngsters would have continued the tantrum all the way to the locker room. He got his composure back and walked off winning a match that might have crushed the momentum he's gaining.
He needs to avoid any more long matches, especially if the weather heats up. He's in the dubs draw so he's got a lot of court time ahead of him.
Ask not for whom the Senti trolls...he trolls for thee!