Jonah Jackson, the only Detroit Lions player to play every offensive snap this season, will miss today's game against the Arizona Cardinals because of a back injury.
Jackson did not practice all week but was listed as questionable on the Lions injury report. He has keyed a Lions running game that ranks seventh in the NFL at 4.6 yards per carry.
MORE FROM BIRKETT:Urban Meyer fiasco a reminder Dan Campbell is different, and in the NFL, different is good
Undrafted rookie Tommy Kraemer will start at left guard in Jackson's place.