NFL to investigate Peyton Manning HGH allegations

SANTA CLARA, Calif. (KGO) -- The NFL has announced it will do what it calls a full investigation of the allegations that Denver Broncos quarterback Peyton Manning used performance enhancing drugs.

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Manning has vehemently denied the allegations.

They arose after Al Jazeera reported manning's wife received shipments of HGH from an Indianapolis anti-aging clinic.

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The NFL says its investigation will start after the Super Bowl, which takes place on Feb. 7 at Santa Clara's Levi's Stadium.

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