Originally Posted by Sri
Federer also can upset him, but only on rare occasions when he's in Goderer mode and not Olderer mode.
That's what you would think, but if you look at it, on many occasions peak Nole still needs Olderer to blow match/set points before he can win against him. Djokovic is not in control in that matchup, unlike when he faces Nadal.
As for Novak's 2013 season, he should win at least one slam but it could be two as well.