Tennessee Titans LB Derick Roberson (hamstring) did not participate in practice Friday, Dec. 25, and has been ruled out for Week 16. CB Adoree’ Jackson (knee), OT Dennis Kelly (knee), DT Jeffery Simmons (knee), C Ben Jones (knee), LB David Long Jr. (neck), OG Rodger Saffold (toe), TE Geoff Swaim (ankle), S Kenny Vaccaro (illness) and WR Kalif Raymond (non-injury) fully participated in practice and are not on the injury report.