This is what I found from the game story on ESPN.com:
Shawn Camp (1-2), promoted Monday from Triple-A Omaha, pitched a perfect 13th. The White Sox protested the game because Camp was not listed on the lineup card.
"The right side of the card is a courtesy" for the reserves and the bullpen, Bell said. "Apparently, they don't know the rules. The protest is a non-issue for me."
I dont like Bell's tone there but it sounds like he knows what he is talking about.