Tennessee Titans running back Chris Johnson (28) gets past Indianapolis Colts defenders Antoine Bethea, center, and Cory Redding, right, as Johnson scores a touchdown on a 7-yard run in the first quarter of an NFL football game Thursday, Nov. 14, 2013, in Nashville, Tenn. (AP Photo/Mark Zaleski)

Tennessee Titans running back Chris Johnson (28) scores on a 19-yard run past St. Louis Rams safety Rodney McLeod (23) during the fourth quarter of an NFL football game Sunday, Nov. 3, 2013, in St. Louis. (AP Photo/Jeff Roberson)

Tennessee Titans running back Chris Johnson (28) is introduced before an NFL football game between the Titans and the New York Jets on Sunday, Sept. 29, 2013, in Nashville, Tenn. (AP Photo/Wade Payne)

Tennessee Titans running back Chris Johnson (28) runs against Oakland Raiders cornerback Mike Jenkins (21) during the first quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 24, 2013. (AP Photo/Ben Margot)

Tennessee Titans' Chris Johnson (28) is tackled by Indianapolis Colts' Vontae Davis (23) during the second half of an NFL football game, Sunday, Dec. 9, 2012, in Indianapolis. (AP Photo/Jeff Roberson)

Tennessee Titans running back Chris Johnson runs against the New York Jets in the first quarter of an NFL football game on Monday, Dec. 17, 2012, in Nashville, Tenn. (AP Photo/Wade Payne)

Tennessee Titans running back Chris Johnson (28) walks on to the field before an NFL football game between the Titans and the New York Jets on Tuesday, Dec. 18, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans running back Chris Johnson listens to the National Anthem before an NFL football game between the Titans and the New York Jets on Monday, Dec. 17, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans running back Chris Johnson wears a pair of shoes with the names of the victims of the Sandy Hook Elementary School shootings in Newtown, Conn., during warmups before an NFL football game against the New York Jets, Monday, Dec. 17, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans running back Chris Johnson (28) scores a touchdown in front of Buffalo Bills defenders George Wilson (37) and Aaron Williams (23) during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Oct. 21, 2012. (AP Photo/Bill Wippert)

Tennessee Titans players Chris Johnson, right, Craig Stevens (88), Tracy Wilson (35), and Mike Martin (93) wait to be introduced before an NFL football game against the Houston Texans on Sunday, Dec. 2, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans running back Chris Johnson (28) scores a second-quarter touchdown after getting past Tampa Bay Buccaneers defensive backs Cody Grimm (35) and Ahmad Black (43) during an NFL preseason football game Friday, Aug. 17, 2012, in Tampa, Fla. (AP Photo/Brian Blanco)

Tennessee Titans' Chris Johnson (28) runs for a touchdown against the Buffalo Bills during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Gary Wiepert)

Tennessee Titans' Chris Johnson celebrates his touchdown run against the Carolina Panthers during the fourth quarter of the Titans' 30-3 win in an NFL football game in Charlotte, N.C., Sunday, Nov. 13, 2011. (AP Photo/Bob Leverone)

Running back Chris Johnson of the Tennessee Titans accepts the FedEx Ground NFL Player of the Year award during a news conference prior to Super Bowl XLIV at the Ft. Lauderdale/Broward Convention Center Wednesday Feb 3, 2010. (David Adame/AP Images for FedEx)

Tennessee Titans running back Chris Johnson (28) gets tackled by diving San Francisco 49ers linebacker Patrick Willis (52) while Johnson scores a fourth quarter touchdown that gives the Titans a 24-20 lead during the NFL football game against the San Francisco 49ers, November 8, 2009 in San Francisco, California. (AP Photo/Paul Spinelli)

NASHVILLE, TN - SEPTEMBER 28: Chris Johnson #28 of the Tennessee Titans runs for a touchdown against the Minnesota Vikings at LP Field on September 28, 2008 in Nashville, Tennessee. The Titans defeated the Vikings 30-17. (AP Photo/Tom Hauck)

Tennessee Titans running back Chris Johnson (28) moves around Indianapolis Colts inside linebacker Jerrell Freeman (50) during the first half of an NFL football game on Sunday, Oct. 28, 2012, in Nashville, Tenn. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson runs against the Arizona Cardinals in the second quarter of an NFL football preseason game on Thursday, Aug. 23, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans' Chris Johnson (28) runs for a touchdown under pressure from Buffalo Bills' Aaron Williams (23) during the first quarter of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/David Duprey)

Tennessee Titans' Chris Johnson scores a touchdown against the Buffalo Bills during the first quarter of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/David Duprey)

Tennessee Titans and AFC running back Chris Johnson (28) is tackled by New Orleans Saints and NFC strong safety Roman Harper (41) during the third quarter of the NFL football Pro Bowl on Sunday, Jan. 30, 2011, in Honolulu. (AP Photo/Eugene Tanner)

Tennessee Titans running back Chris Johnson (28) protects the ball from Indianapolis Colts linebacker Pat Angerer (51) as Johnson crosses the goal line to score a touchdown on a 1-yard touchdown run in the second quarter of an NFL football game on Thursday, Dec. 9, 2010, in Nashville, Tenn. (AP Photo/Joe Howell)

Tennessee Titans Chris Johnson (28) during an NFL game against the Washington Redskins at LP Field on November 21, 2010 in Nashville, Tennessee. The Redskins defeated the Titans 19-16 in overtime. (AP Photo/Tom DiPace)

Tennessee Titans running back Chris Johnson (28) is wrapped up by San Francisco 49ers linebackers Patrick Willis (52) and Takeo Spikes (51) an NFL game on November 8, 2009. The Titans defeated the 49ers 34-27. (AP Photo/Kevin Terrell)

SAN FRANCISCO, CA - NOVEMBER 8: Chris Johnson #28 of the Tennessee Titans celebrates a touchdown against the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. The Titans defeated the Niners 34-27. (AP Photo/Tom Hauck)Chris Johnson

Tennessee Titans quarterback Vince Young carries running back Chris Johnson after Johnson's 29-yard touchdown during the first half of an NFL football game against the San Diego Chargers, Sunday, Oct. 31, 2010, in San Diego. (AP Photo/Gregory Bull)

Tennessee Titans running back Chris Johnson (28) runs for a 35-yard touchdown past Jacksonville Jaguars safety Courtney Greene (36) during the second half of an NFL football game in Jacksonville, Fla., Monday, Oct. 18, 2010. (AP Photo/John Raoux)

Tennessee Titans running back Chris Johnson (28) dives into the end zone for a touchdown against Dallas Cowboys cornerback Alan Ball (20) during the second half of an NFL football game Sunday, Oct. 10, 2010, in Arlington, Texas. (AP Photo/Tim Sharp)

Tennessee Titans running back Chris Johnson (28) reacts after scoring a touchdown during the NFL football Pro Bowl Sunday, Jan. 31, 2010, in Miami. (AP Photo/Mark Humphrey)

Tennessee Titans' Chris Johnson celebrates his touchdown in the fourth quarter against the Seattle Seahawks, Sunday, Jan. 3, 2010, during an NFL football game in Seattle. On Sunday, Johnson became the sixth player in NFL history to rush for 2,000 yards in a season. (AP Photo/Elaine Thompson)

Tennessee Titans running back Chris Johnson (28) leaves Arizona Cardinals defenders Antrel Rolle (21) and Karlos Dansby (58) behind as Johnson runs for an 85-yard touchdown in the third quarter of an NFL football game on Sunday, Nov. 29, 2009 in Nashville, Tenn. (AP Photo/John Russell)

Tennessee Titans running back Chris Johnson (28) and quarterback Vince Young, right, celebrate after beating the Houston Texans 20-17 in an NFL football game Monday, Nov. 23, 2009 in Houston. (AP Photo/Dave Einsel)

Tennessee Titans running back Chris Johnson (28) runs for a touchdown on a 1-yard run ahead of Buffalo Bills linebacker Nic Harris (54) in the fourth quarter of an NFL football game in Nashville, Tenn., Sunday, Nov. 15, 2009. (AP Photo/Wade Payne)

Tennessee Titans running back Chris Johnson carries a flag as he runs onto the field before an NFL football game against the Buffalo Bills in Nashville, Tenn., Sunday, Nov. 15, 2009. (AP Photo/John Russell)

Tennessee Titans running back Chris Johnson (28) is brought down by Indianapolis Colts cornerback Marlin Jackson (28) during the first quarter of an NFL football game in Nashville, Tenn., Monday, Oct. 27, 2008. (AP Photo/Mark Humphrey)

Tennessee Titans running back Chris Johnson celebrates across the goal line to score a touchdown on a 1-yard run against the Minnesota Vikings in the first quarter of an NFL football game in Nashville, Tenn., Sunday, Sept. 28, 2008. (AP Photo/Mark Humphrey)

Tennessee Titans first-round draft pick, running back Chris Johnson, second from left, and second-round pick, defensive lineman Jason Jones, second from right, are introduced by general manager Mike Reinfeldt, left, and head coach Jeff Fisher, right, in Nashville, Tenn., Sunday, April 27, 2008. (AP Photo/Mark Humphrey)

East Carolina running back Chris Johnson holds the MVP award after his team defeated Boise State 41-38 to win the Hawaii Bowl football game at Aloha Stadium on Sunday, Dec. 23, 2007, in Honolulu. (AP Photo/Marco Garcia)

East Carolina running back Chris Johnson runs through the Boise State defense during the second quarter of the Hawaii Bowl football game at Aloha Stadium on Sunday, Dec. 23, 2007, in Honolulu. East Carolina defeated Boise State 41-38. Johnson set an NCAA bowl record with 408 all-purpose yards. (AP Photo/Marco Garcia)

East Carolina running back Chris Johnson, right, tries to elude UTEP defender Quintin Demps during the first quarter Saturday Oct. 13, 2007 in El Paso, Texas. (AP Photo/ Victor Calzada)