San Francisco 49ers wide receiver Michael Crabtree (15) cannot make the reception as Baltimore Ravens cornerback Corey Graham (24) defends during the second half of the NFL Super Bowl XLVII football game, Sunday, Feb. 3, 2013, in New Orleans.  (AP Photo/Charlie Riedel)

Photo by: Charlie Riedel

San Francisco 49ers wide receiver Michael Crabtree (15) cannot make the reception as Baltimore Ravens cornerback Corey Graham (24) defends during the second half of the NFL Super Bowl XLVII football game, Sunday, Feb. 3, 2013, in New Orleans. (AP Photo/Charlie Riedel)