UDFA? EDIT: Yep. http://www.chicagotribune.com/sports/football/bears/chi-chicago-bears-mark-harrison-sidelined-20130510,0,268701.story He has to be a camp casualty candidate. I'd say any UDFA probably is, but it sounds like the reason he was a UDFA was because of the injury, so it's not like it was a surprise.