Members of grounds crew paint an NFL Championship logo on the field at Gillette Stadium in Foxborough, Mass., Tuesday, Jan. 15, 2013. The New England Patriots host the Baltimore Ravens in the AFC championship NFL football game on Sunday. (AP Photo/Stephan Savoia)

An NFL Championship logo is displayed on the field at Gillette Stadium in Foxborough, Mass., Tuesday, Jan. 15, 2013. The New England Patriots host the Baltimore Ravens in the AFC championship NFL football game on Sunday. (AP Photo/Stephan Savoia)

Members of the field crew paint final touches to the NFL championship logo on the turf of Gillette Stadium in Foxborough, Mass., Tuesday, Jan. 15, 2013. The New England Patriots face the Baltimore Ravens on Sunday. (AP Photo/Stephan Savoia)