Tennessee Titans' Damian Williams (17) can't make the catch under pressure from Buffalo Bills' Justin Rogers (26) 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 (28) runs for a touchdown as Buffalo Bills' Aaron Williams (23) chases during the first quarter of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/David Duprey)

Tennessee Titans quarterback Matt Hasselbeck throws 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 (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)

Buffalo Bills' C.J. Spiller (28) runs past Tennessee Titans' Michael Griffin (33) during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Derek Gee)

Tennessee Titans' Chris Johnson celebrates his 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' Ahmard Hall (45) runs under pressure from Buffalo Bills' Kelvin Sheppard (55) during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Gary Wiepert)

Tennessee Titans' Javon Ringer (21) runs the ball against Buffalo Bills' Jairus Byrd (31) during the second half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Derek Gee)

Tennessee Titans' Lavelle Hawkins (87) looks for room to run around Buffalo Bills' Bryan Scott, left, during the second half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Derek Gee)

Tennessee Titans coach Mike Munchak stands on the sidelines during the first half of an NFL football game against the Buffalo Bills in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Derek Gee)

Chris Johnson avanza para anotar por los Titans de Tenes�� contra los Bills de Buffalo el domingo 4 de diciembre del 2011 en Orchard Park, Nueva York. (Foto AP/David Duprey)

Buffalo Bills' Ryan Fitzpatrick (14) is sacked by Tennessee Titans' Karl Klug (97) during the second half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 4, 2011. The Titans won 23-17. (AP Photo/Gary Wiepert)

Tennessee Titans' Jason McCourty (30) walks off the field with trainers after being injured during the first quarter of an NFL football game against the Buffalo Bills in Orchard Park, N.Y., Sunday, Dec. 4, 2011. (AP Photo/Derek Gee)

Tennessee Titans' Chris Johnson celebrates his touchdown during the first quarter of an NFL football game against the Buffalo Bills in Orchard Park, N.Y., Sunday, Dec. 4, 2011. The Titans won 23-17. (AP Photo/Derek Gee)