Having a chance to start the season 3 - 0 , the Cowboys will have a tough task to defy the odds .
The Dallas Cowboys come into their Sunday matchup with the Atlanta Falcons as the underdog at home .
Having a chance to start the season 3 - 0 , the Dallas Cowboys will have a tough task to defy the odds .
The Dallas Cowboys come into their Sunday matchup with the Atlanta Falcons as the underdog at home .