Zambrano used to wear those blue jerseys like every time he pitched. I don't remember blue jerseys with gray pants; i thought it was with their usual white ones.It was just a joke. Dude.
Just an opinion on clothing dude.
But my point earlier about the blue top and gray pants remains. Those are the 'alternate' road uniforms, and are only used at perhaps 1/4 of the away games now, where they were the only option during the 80's.
EDIT: Though now that I think about it, I think they wore the blue shirts for both home and away games. I like those shirts.