For a professional football player, Danny is tiny. He's a five-foot-eight running back for the New England Patriots (who, by the way, will be playing the Denver Broncos today). But Number 39 has become a fan favorite, because he plays with heart and speed.
As SI notes: "It's only on a football field where Danny Woodhead weekly stands out as the most unlikely of highlighters, etched against a panorama of enlarged NFL humanoids. Where he regularly ducks beneath the swat of defensive linemen, a foot taller and 100 pounds heavier, to churn out a few more yards. Where blitzers don't even see him until he blocks them to the ground. Where he skirts out of the backfield, outruns a linebacker, jukes a cornerback, and gains another 10 yards."
Danny has also been described as "grounded" or an "everyman." At 26 years old, he's married to his high school sweetheart and was homeschooled through high school in his native Nebraska, the product of a close-knit, blue-collar religious family.
This article and this article explain the source of his drive and his fearlesness.
This commercial plays up his likeable ordinariness.