Unfortunately this is a move that we have seen coming for about a week. The Titans went ahead and made it official today by placing DT Jason Jones on injured reserve according to @titansradio.
Jones has showed flashes of being really good when he has been out there, but he has been hampered by injuries in both of his seasons with the Titans. He is supposed to have shoulder surgery today, so hopefully he will be ready to go when the OTAs start this spring.
The only bright spot here is that 2009 2nd round pick Sen'Derrick Marks should be able to get plenty of reps down the stretch.