Defensive lineman Christian Ringo has re-upped with the Green Bay Packers.  The 6-1, 298-pound, 25-year-old signed his exclusive rights free-agent tender from the team Thursday, according to ESPN.com’s Rob Demovsky.  Ringo is expected to be a part of the defensive line rotation more often.  He spent his rookie season on the practice squad in 2015, then played in eight games last season.  He was in on a little over seven percent of the defensive snaps.