I was thinking about this at school today and I think National League pitchers are better conditioned than American League pitchers. I mean, I am sure all pitchers are amazing athletes but NL pitchers have to prepare for all aspects of the game. That includes batting and running the bases. In the Yankee game Chien-Ming Wang injured his foot while running the bases and he will be out for a signifigant amount of time. Who knows if this injury would have been prevented by not playing in a NL park and not running the bases. I am just saying that NL pitches are ready to run the bases every time they pitch and pitching in an AL park might be somewhat of a rest for them.
I am just saying.