I thought Zab was looking tired midway through, but his conditioning is incredible the way he has picked it up here.
Zab looks like revitalized fighter, but Garcia has recovered. Garcia looks a bit slower and sloppier than he was in the earlier rounds.
Zab is just old. He just doesn't have it anymore, which is sad considering his heart and his pressure tolerance has grown exponentially over what it was say during his fights with Mayweather and Clottey.