Oruwariye (back) was designated to return from injured reserve Wednesday, Todd Archer of ESPN.com reports.
Oruwariye has been on IR for the Cowboys' last five games since suffering a back injury against the 49ers in Week 8. The Penn State product will now have a 21-day window to practice with the team before he needs to be placed on the active roster, but if healthy enough, he could return Monday against the Bengals.