Colts' Chad Muma: Healthy scratch for opener

Muma was inactive for Sunday's win over Miami.

Muma will back up Joe Bachie and Cameron McGrone at linebacker, but he may not be active on gamedays as he looks like No. 6 on the depth chart among linebackers. Muma worked in a reserve role at Jacksonville last season, with 322 of his 563 total snaps coming on special teams.