Name: Peyton Manning denies using banned substance as controversy grows
Uploaded: Tue Dec 29 2015 12:57:00 GMT+0000 (UTC)
Duration: 2 min 39 s
Description: NFL star Peyton Manning denies using banned human growth hormone while recovering from a neck injury in 2011, but a new audiotape released by Al Jazeera America is adding fuel to the controversy. TODAY national correspondent Craig Melvin reports.

Dec. 29, 201502:39