Von Miller will make his preseason debut Saturday night when the Broncos host the Green Bay Packers. The all-pro outside linebacker sat out Denver’s first two games of the preseason — road games at Chicago and San Francisco — with first-year coach Vance Joseph exercising an abundance of caution. Other members of the first-string defense have seen limited action in those games. Joseph said he’s not sure how much Miller will play Saturday. Miller said this week that he is open to playing any amount of preseason snaps asked of him.