From this 2015 article by Ross Dellenger of The Advocate (a Louisiana based news paper):
His high school coach describes Derrius Guice as “a ball of butcher knives.”
He runs angry. He runs violent.
He’s a human pinball, bouncing off tacklers as if they were the walls in the arcade game. He runs with a passion, teammate Leonard Fournette said. He runs with emotion and conviction.
He runs because he doesn’t want to fall. He runs because he doesn’t want to fail. The ground — and everything it stands for — is his enemy.