Re: Who will win : Ljubicic vs Karlovic
Most probably, it'll go to tiebreaks.
If it does, then for Ljubicic, the key will be if he is able to take one point or two off Karlovic's serve, if Karlovic doesn't get his first serve in and puts in a short second serve (which he will most likely do, to avoid a double fault in the TB), can Ljubicic take advantage of it.
I believe Ljubicic can do it if he returns well today
, so 7-6 7-6 to Ljubicic in that case.