Dak Prescott on Training & Motivation, "Best I've ever been"

Going into year 4, Dak Prescott looks back on his growth as a QB while keeping his eyes on what's next. Subscribe to NFL Network: goo.gl/4GOLwY Check out our other channels: NFL Vault youtube.com/nflvault NFL Films youtube.com/nflfilms NFL Rush youtube.com/nflrush NFL youtube.com/nfl #NFL #NFLNetwork #Football #AmericanFootball

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