MMA champion Randy Couture, center, rides a mechanical bull during a promotional event by Reebok, Friday, Feb. 4, 2011, in Dallas. Looking on from left is former NFL player Archie Manning, sports ... more 
MMA champion Randy Couture, center, rides a mechanical bull during a promotional event by Reebok, Friday, Feb. 4, 2011, in Dallas. Looking on from left is former NFL player Archie Manning, sports reporter Erin Andrews, NFL players Peyton Manning, DeMarcus Ware and Chad Ochocinco and "King of Rodeo" Ty Murray. less 
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Associated Press | Photo By Matt Slocum
Sun, Feb 6, 2011 7:24 AM EST