A NBCDFW.COM user forwarded an image purportedly showing Giants' quarterback Eli Manning's victory signature after the team defeated the Cowboys in Arlington on Sept. 20. "See the picture of a concrete column in the visitor locker room in the new Cowboys stadium," the NBCDFW.com user wrote. "I heard the locker room was spat on and had many used jock straps hanging from the mirrors and other places too. What class." The Cowboys have not responded to our questions on the authenticity of this message or information about the condition of the visitors' locker room after the Giants 33-31 victory, the...