A worker in a San Francisco 49ers hard hat walks outside of the Mercedes-Benz Superdome as preparations take place for the NFL Super Bowl XLVII football game on Sunday, Jan. 27, 2013, in New Orleans. The Baltimore Ravens and San Francisco 49ers are scheduled to play in Super Bowl XLVII on Sunday, Feb. 3. (AP Photo/Patrick Semansky)

Associated Press
A worker in a San Francisco 49ers hard hat walks outside of the Mercedes-Benz Superdome as preparations take place for the NFL Super Bowl XLVII football game on Sunday, Jan. 27, 2013, in New Orleans. The Baltimore Ravens and San Francisco 49ers are scheduled to play in Super Bowl XLVII on Sunday, Feb. 3. (AP Photo/Patrick Semansky)
A worker in a San Francisco 49ers hard hat walks outside of the Mercedes-Benz Superdome as preparations take place for the NFL Super Bowl XLVII football game on Sunday, Jan. 27, 2013, in New Orleans. The Baltimore Ravens and San Francisco 49ers are scheduled to play in Super Bowl XLVII on Sunday, Feb. 3. (AP Photo/Patrick Semansky)
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