Darden (concussion) has been ruled out for Sunday's contest against the Falcons, Jenna Laine of ESPN.com reports.
Despite registering a full practice Thursday, Darden wasn't able to practice with contact at all this week and has been officially ruled out for Week 13. The 5-foot-8 wideout has mostly operated as a return specialist this season, so in his absence, Tyler Johnson and Giovani Bernard are the most likely candidates to handle those duties against the Falcons.