Baltimore Ravens quarterback Joe Flacco walks off the field with his head down during the second half of an NFL football game against the Denver Broncos in Baltimore, Sunday, Dec. 16, 2012. (AP ... more 
Baltimore Ravens quarterback Joe Flacco walks off the field with his head down during the second half of an NFL football game against the Denver Broncos in Baltimore, Sunday, Dec. 16, 2012. (AP Photo/Patrick Semansky) less 
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Associated Press | Photo By Patrick Semansky
Sun, Dec 16, 2012 4:42 PM EST