Ljubo lacks match practice and Lacko easily got through qualifying, so I'm a bit worried of this one. I expect Lacko to get an early lead, and then possibly Ivan's comeback. Still, I wouldn't be surprised if Lacko won.
We should be appreciative of Federer though, because we will never see anything like him again. The fact he can still compete for slams ever after the erosion of his physical skills is really a greater testament to the natural talent he has than the period of time when he was dominating the tour.