FILE - In this Feb. 7, 2010, file photo, Indianapolis Colts quarterback Peyton Manning celebrates after teammate Joseph Addai scored a touchdown during the second half of the NFL Super Bowl XLIV football game against the New Orleans Saints in Miami. A person with knowledge of the decision tells The Associated Press on Sunday, March 6, 2016, that Manning has informed the Denver Broncos he's going to retire. (AP Photo/Julie Jacobson, File)
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