Isn't that what happened when he was playing Saville in one of the Junior Finals, he was down by a huge score and made a huge comeback?
The Wimbledon final against Saville he won in straights
I do remember however(and I mentioned it on twitter yesterday) that he was down pretty bad in the US Open semis, to maybe Krueger I think and made a big comeback. He done it a few times in his junior GS runs but that one was huge, I think he was down maybe a set and 4-1(2 breaks) and won in 3.
edit: must have been the Wimbledon semis to Krueger I just checked. Though I remember one at the US Open as well, maybe in his round 2 match