Tennessee Titans running back Chris Johnson signs autographs following NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans offensive tackle David Stewart, left, battles defensive end Eric Bakhtiari (99) during a play at NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson wipes his head during a break in NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans quarterback Vince Young (10) and wide receiver Nate Washington (85) celebrate after a pass completion during NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans tight end Jared Cook (89) grabs a pass in front of defensive end Jason Babin (93) during NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans coach Jeff Fisher holds up a play for the offense to see during NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans guard Ryan Durand (77) keeps a hold on defensive tackle Jason Jones (91) during NFL football training camp Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans cornerback Jason McCourty (30) breaks up a pass intended for wide receiver Bobby Sewall (15) during NFL football training camp on Wednesday, Aug. 11, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans cornerback Cortland Finnegan (31) breaks up a pass intended for wide receiver Justin Gage, right, during NFL football training camp Monday, Aug. 2, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans defensive end Jacob Ford does a conditioning drill with heavy ropes as strength and conditioning coach Steve Watterson times him during NFL football training camp on Monday, Aug. 9, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans cornerback Jason McCourty, right, intercepts a pass intended for wide receiver Lavelle Hawkins (87) during NFL football training camp on Monday, Aug. 9, 2010, in Nashville, Tenn. An improved secondary is a must for Tennessee, with a defense that ranked 31st with 258.7 yards passing allowed per game in 2009. (AP Photo/Mark Humphrey)

Tennessee Titans cornerback Ryan Mouton lines up for a play during NFL football training camp on Monday, Aug. 9, 2010, in Nashville, Tenn. An improved secondary is a must for Tennessee, with a defense that ranked 31st with 258.7 yards passing allowed per game in 2009. (AP Photo/Mark Humphrey)

Tennessee Titans head coach Jeff Fisher encourages his players to make noise and simulate a loud crowd as the Titans run plays near the goal line during NFL football training camp on Monday, Aug. 9, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans coach Jeff Fisher watches as quarterback Kerry Collins (5) calls a play during an NFL football training camp workout Wednesday night, Aug. 4, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans wide receivers Bobby Sewall, left, and Kenny Britt, right, work on their own following a night workout at NFL football training camp on Wednesday, Aug. 4, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson (28) tries to get by safety Vincent Fuller (22) during NFL football training camp Tuesday, Aug. 3, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson takes a handoff from quarterback Vince Young during NFL football training camp Tuesday, Aug. 3, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans wide receiver Nate Washington takes a break from the heat as he sits on a water cooler during NFL football training camp on Tuesday, Aug. 3, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans head coach Jeff Fisher, left, talks with former Titans running back Eddie George during NFL football training camp on Monday, Aug. 2, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans quarterback Vince Young, left, talks with running back Chris Johnson, right, during NFL football training camp on Monday, Aug. 2, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson, left, runs a blocking drill with linebacker Jamie Winborn (52) during NFL football training camp Monday, Aug. 2, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson, center, laughs with quarterback Vince Young, left, and tight end Bo Scaife, right, during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. Johnson led the NFL in rushing with 2,006 yards last season and was the AP 2009 Offensive Player of the Year. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson, right, runs past defensive end William Hayes, left, during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. Johnson led the NFL in rushing with 2,006 yards last season and was the AP 2009 Offensive Player of the Year. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson, left, runs the ball as tight end Bo Scaife, center, blocks safety Michael Griffin, right, during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. Johnson led the NFL in rushing with 2,006 yards last season and was the AP 2009 Offensive Player of the Year. (AP Photo/Mark Humphrey)

Tennessee Titans quarterback Vince Young (10) and wide receiver Kenny Britt, right, celebrate after a play during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans head coach Jeff Fisher watches as players run a drill during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. (AP Photo/)

Tennessee Titans players, including offensive tackle Mike Otto (66), quarterback Vince Young (10), and defensive tackle Jovan Haye (75), run during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Fans watch as Tennessee Titans wide receiver Paul Williams runs a drill during NFL football training camp on Saturday, July 31, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans head coach Jeff Fisher answers questions on Friday, July 30, 2010, in Nashville, Tenn., about the team's upcoming training camp and season. Last season the Titans become the first NFL team to finish at .500 after starting 0-6. (AP Photo/Mark Humphrey)

Tennessee Titans wide receiver Justin Gage (12) reaches for a pass as he is defended by cornerback Alterraun Verner (20) during NFL football training camp Sunday, Aug. 1, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans quarterback Vince Young yells to a teammate during NFL football training camp on Sunday, Aug. 1, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans quarterback Vince Young, right, hands off to running back Chris Johnson during NFL football training camp on Sunday, Aug. 1, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans defensive end Derrick Morgan (96) watches as defensive line coach Jim Washburn, right, supervises a drill during NFL football training camp Sunday, Aug. 1, 2010, in Nashville, Tenn. Morgan's first day in camp didn't last long before he was sidelined by the same tight left calf that bothered him during the offseason. (AP Photo/Mark Humphrey)

Tennessee Titans defensive end Derrick Morgan (96) talks with the team physician, Dr. Burton F. Elrod, during NFL football training camp Sunday, Aug. 1, 2010, in Nashville, Tenn. Morgan's first day in camp didn't last long before being sidelined by the same tight left calf that bothered him during the offseason. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson runs the ball during NFL football training camp on Sunday, Aug. 1, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans defensive end Derrick Morgan (96) watches during NFL football training camp on Sunday, Aug. 1, 2010, in Nashville, Tenn. Morgan's first day in camp didn't last long before being sidelined by the same tight left calf that bothered him during the offseason. (AP Photo/Mark Humphrey)

Tennessee Titans defensive tackle Sen'Derrick Marks (94) uses a blocking pad against defensive end Jason Babin (93) in a drill during NFL football training camp Sunday, Aug. 1, 2010, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans defensive line coach Jim Washburn watches as his players run a drill during NFL football training camp Sunday, Aug. 1, 2010, in Nashville, Tenn. The players are end Derrick Morgan (96), tackle Sen'Derrick Marks (94), lineman Joe Joseph (72) and end Eric Bakhtiari (99). (AP Photo/Mark Humphrey)