The Titans have signed CB Brandon Ghee to fill Bernard Pollard's spot on the roster. Pollard was placed on IR today after having surgery yesterday to repair a ruptured Achilles' tendon. All indications are that the surgery went well.
Ghee was with the Cincinnati Bengals from 2010-2013. He signed with the Chargers in March, but didn't stick with the team.
The fact that they signed a corner and not a safety to replace Pollard leads me to believe that they are not confident in the health of Coty Sensabugh's knee.