A few years ago, they had some guy throw out the first pitch. He walked out to the Mound with a Cubs' jersey on.
He then tore off the Cubs' jersey revealing a White Sox jersey, pulled a Sox hat from his back pocket and threw the first pitch.
Ever since, the Cubs check out the clothing of the person tossing out the first pitch.
IIRC, he was a friend of a WSIer.
This just in from the newswires: The Anti-Trust Division of the US Department of Justice has announced that whenever Sale take The Bump, it is unfair competition in violation of various federal and state laws. However, he is not being prosecuted because it is so ****in awesome to watch him do his craft.