He got the job done and that is all that matters (although the scoreline is worrying, for him). Russia really needed to make it 2-0 given that Nole was absent today. Even now, the tie isn't beyond doubt, given that it is, perhaps, not unreasonable to think that Nole and Tipsy might still show up before the tie is over.
Troicki played well today. In 3rd & 5th set he broke Kolya in 1st game but after that he fall physically and couldn't hold there. Anyway all credits to him - that was his 1st match he played four or five sets.
As far as my tennis knowledge goes, this 5 setter is fixed.
I mean number 4 player, doesn't just "forget" to play tennis in two sets, and all of you who think Troicki did something special... He didn't.