Video: Peyton Manning Going Manic On Sidelines

We all know that Peyton Manning is the consummate NFL quarterback, having led the Indianapolis Colts to recent Super Bowl glory, while landing himself some lucrative endorsement deals.

Peyton Manning wave

But beneath the QB’s calm-under-fire exterior lurks a maniacal madman, just waiting to be unleashed unto the world. And PRO FOOTBALL TALK catches Eli’s older brother in one of those manic moments, lashing out at his linemen during a game against the Rams:

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