The video above comes from @DallasCowboys Twitter account.
Dallas Cowboys left tackle says he started developing the attitude he needed to be successful in football long before football.
Smith says he built his work ethic waking up before dawn to work because his family needed him to, which served him well when he played his first down of football in high school.
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"Hard work is all I know," he says on the video.
Smith says the entire offensive line wants to be known as the hardest working group on the team, which is what they need to fulfill their only goal: to Finish This Fight.