NFL Games
Super Bowl XLVII: San Francisco 49ers vs. Baltimore Ravens
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San Francisco 49ers coach Jim Harbaugh blows a whistle during NFL football practice, Thursday, Jan. 24, 2013, in Santa Clara, Calif. The 49ers are slated to take on the Baltimore Ravens in Super Bowl XLVII in New Orleans on Sunday, Feb. 3. (AP Photo/Ben Margot)
