San Francisco 49ers wide receiver Anquan Boldin, right, signs a autograph for Alejandro Guzman, left, and Andrew Meredith, center, guests of Brett Wallis (not shown) winner of the NRG Power to Change ... more 
San Francisco 49ers wide receiver Anquan Boldin, right, signs a autograph for Alejandro Guzman, left, and Andrew Meredith, center, guests of Brett Wallis (not shown) winner of the NRG Power to Change Life Sweepstakes during a tour of the still under construction Levi Stadium in Santa Clara, Calif., Monday, Dec. 9, 2013. (Tony Avelar / AP Images for NRG Energy) less 
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Associated Press
Mon, Dec 9, 2013 11:28 PM EST