New Orleans designated Roby (ankle) to return from injured reserve Wednesday, Aaron Wilson of ProFootballNetwork.com reports.
Roby hit IR on Oct. 25 after injuring his ankle in Week 7 against Arizona. He's sat out the mandatory four games, and the Saints now have a 21-day window to activate him. Prior to landing on IR, Roby played in seven games and tallied 20 tackles (16 solo), two pass defenses and a recovered fumble.