In the words of the late, great John Madden: Boom.Typically, football broadcasts stray away from showing field-invading fans as a means to discourage that kind of behavior from anyone who might think about it. That's not the case for Peyton and Eli Manning, who, during Monday's 49ers-Rams matchup, broke down the a fan storming the field in Santa Clara, Calif.During the second quarter of the ,...