I thought this post might be helpful as this season moves forward. It shows when each player on the Titans roster, becomes a FA.
Name - Height - Weight - age (as of Sept. 4th) - 2013 Salary
2014 Free Agents:
RB Jackie Battle - 6'2" - 240 - 29 - $ NA
RB/KR/PR Darius Reynaud - 5'9", 209, 28 - $700,000
WR Kenny Britt - 6'3" - 223 - 24 - $1,347,500
WR Damian Williams - 6'1" - 193 - 25 - $1,323,000
WR Michael Preston - 6'5" - 213 - 24 - $480,000 - a ERFA
OT Michael Roos - 6'7" - 313 - 30 - $6,000,000 - 2014 is a Voidable contract year
OT David Stewart - 6'7" - 313 - 31 - $6,000,000 - 2014 is a Voidable contract year
OT Mike Otto - 6'5" - 308 - 30 - $1,700,000
OG/C Chris Spencer - 6'3" - 308 - 31 - $905,000
C/OG Rob Turner - 6'4" - 308 - 29 - $1,250,000
DE Ropati Pitoitua - 6'8" - 298 - 28 - $800,000
DE Keyunta Dawson - 6'3" - 258 - 27 - $715,000
NT Antonio Johnson - 6'3" - 328 - 28 - $800,000
CB Alterraun Verner - 5'10" - 186 - 24 - $1,323,000
SS Bernard Pollard - 6'1 - 226 - 28 - $1,500,000
WR Marc Mariani (on IR) - 6'1" - 190 - $575,000
2015 Free Agents:
QB Jake Locker - 6'3" - 225 - 25 - $1,519,182
QB Ryan Fitzpatrick - 6'2" - 225 - 30 - $3,250,000
FB Quinn Johnson - 6'1" - 255 - 26 - $715,000
WR Nate Washington - 6'1" - 183 - 30 - $4,200,000
TE/LS Beau Brinkley - 6'4", 248 - 23 - $480,000
OT Michael Roos - 6'7" - 313 - 30 - $6,000,000
OT David Stewart - 6'7" - 313 - 31 - $6,000,000
OT Byron Stingily - 6'5" - 318 - 24 - $555,000
DT Jurrell Casey - 6'1" - 305 - 23 - $580,000
DT/DE Karl Klug - 6'3" - 278 - 25 - $555,000
SLB Akeem Ayers - 6'3" - 253 - 24 - $822,864
MLB Moise Fokou - 6'1" - 243 - 28 - $1,100,000
MLB Colin McCarthy - 6'1" - 243 - 25 - $555,000
LB Patrick Bailey - 6'4" - 243 - 27 - $1,200,000
CB Tommie Campbell - 6'3" - 198 - 25 - $555,000
S George Wilson - 6'0" - 210 - 32 - $1,400,000
K Rob Bironas - 6'0" - 208 - 35 - $2,050,000
P Brett Kern - 6'2" - 214 - 27 - $821,500
LB Greg Jones (on IR) - 6'0" - 248 - 24 - $555,000
2016 Free Agents:
RB Shonn Greene - 5'11" - 233 - 28 - $1,650,000
WR Kendall Wright - 5'10" - 191 - 23 - $763,586
TE Craig Stevens - 6'3" - 263 - 29 - $2,500,000
TE Taylor Thompson - 6'6" - 268 - 23 - $480,000
DE Derrick Morgan - 6'3" - 271 - 24 - $1,160,000
NT Sammy Lee Hill - 6'4" - 328 - 26 - $2,000,000
DT Mike Martin - 6'1" - 298 - 23 - $500,000
WLB Zach Brown - 6'1" - 248 - 23 - $565,377
CB Cotty Sensabough - 5'11" - 187 - $480,000
FS Markelle Martin (on IR) - 6'1" - 207 - 23 - $480,000
2017 Free Agents:
RB Chris Johnson - 5'11" - 203 - 27 - $10,000,000
WR Justin Hunter - 6'4" - 203 - 22 - $405,000 - $2,324,000 Signing Bonus
TE Delanie Walker - 6'0" - 248 - 29 - $2,000,000
C Brian Schwenke - 6'3" - 318 - 22 - $405,000
DE/OLB Kamerion Wimbley - 6'4" - 258 - 29 - $4,000,000
DE Lavar Edwards - 6'4" - 278 - 23 - $405,000
WLB Zavier Gooden - 6'1" - 231 - 23 - $405,000
CB Bidi Wreh-Wilson - 6'1" - 198 - 23 - $405,000 - $656,324 Signing Bonus
FS Michael Griffin - 6'0" - 215 - 28 - $4,500,000
SS Daimion Stafford - 6'1" - 218 - 22 - $405,000
2018 Free Agents:
OG Chance Warmack - 6'2" - 323 - 21 - $405,000 - $7,228,472 Signing Bonus
CB Jason McCourty - 6'0" - 193 - 26 - $5,000,000
2019 Free Agents:
OG Andy Levitre - 6'2" - 303 - 27 - $2,500,000
NOTE: The heights, weights, and ages are from SportingNews.com, and the contract info is from RotoWorld.com.