Originally Posted by mbgrayson
It's not just the workload with the WBC, it's the breaking up of the normal pattern of preparation. Normally pitchers will gradually build up how many innings they work, stretch their stamina, fight through their dead arm period.
The WBC alters all of that normal preparation, and replaces it with a series of 'do or die' games, with massive nationalistic pressure to succeed before the players have fully gotten ready.
Not really for the first two rounds though. Volquez would have likely been throwing 3 innings in Sarasota or 3 innings in Puerto Rico, it didn't really matter.
For teams that make the finals I'd buy this as an excuse more than for someone like Volquez or Cueto.