PITTSBURGH — Steelers fullback Roosevelt Nix has a knee injury that could cause him to miss multiple games, head coach Mike Tomlin said on Tuesday. Nix did not participate on offense in the Steelers’ season-opening loss to the New England Patriots on Sunday. Tomlin said that Nix was injured early in the game, which must … Continue reading Steelers FB Roosevelt Nix Could Miss Multiple Weeks with Knee Injury