SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans runs against Shawntae Spencer(notes) #36 of the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Parys Haralson(notes) #98, Manny Lawson(notes) #99 and Isaac Sopoaga(notes) #90 of the San Francisco 49ers wait to be introduced in NFL action against the Tennessee Titans on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vernon Davis(notes) #85 of the San Francisco 49ers looks on against the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Hope(notes) #24 of the Tennessee Titans runs after an interception against the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Justin Gage(notes) #12 of the Tennessee Titans leaps to catch a ball against the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans runs against Dashon Goldson(notes) #38 of the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Frank Gore(notes) #21 of the San Francisco 49ers is tackled by Rod Hood(notes) #37 of the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Head coach Mike Singletary of the San Francisco 49ers looks on against the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Alex Smith #11 of the San Francisco 49ers runs against the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Alex Smith #11 of the San Francisco 49ers walks off the field after their loss to the Tennessee Titans at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans passes the ball against Tarell Brown(notes) #25 of the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Hope(notes) #24 of the Tennessee Titans celebrates after he sacked Alex Smith #11 of the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans runs with the ball against the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Hope(notes) #24 of the Tennessee Titans sacks Alex Smith #11 of the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Alex Smith #11 of the San Francisco 49ers tries to tackle Keith Bulluck(notes) #53 of the Tennessee Titans after Bulluck recovered a fumble by Smith at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Hope(notes) #24 of the Tennessee Titans celebrates after he intercepted a pass throw by Alex Smith #11 of the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans gets past Parys Haralson(notes) #98 of the San Francisco 49ers on his way in to score a touchdown at Candlestick Park on November 8, 2009 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vince Young(notes) #10 of the Tennessee Titans passes against the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vince Young(notes) #10 of the Tennessee Titans runs against the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

Tennessee Titans running back Chris Johnson is brought down by San Francisco 49ers linebacker Patrick Willis(notes), bottom, and San Francisco 49ers safety Mark Roman(notes), right, during the third quarter of their NFL football game in San Francisco, Sunday, Nov. 8, 2009. In the background at left is San Francisco 49ers linebacker Parys Haralson(notes).

Tennessee Titans quarterback Vince Young(notes), left, greets Tennessee Titans running back Chris Johnson, right, after Johnson scored a touchdown during the third quarter of their NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 8, 2009.

Tennessee Titans running back Chris Johnson, right, runs past San Francisco 49ers' Parys Haralson(notes), left, during the second quarter of their NFL football game in San Francisco, Sunday, Nov. 8, 2009.

SAN FRANCISCO - NOVEMBER 08: Michael Crabtree(notes) #15 of the San Francisco 49ers runs after a catch as Vincent Fuller(notes) #22 of the Tennessee Titans defends during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Alex Smith #11 of the San Francisco 49ers is tackled by William Hayes(notes) #95 of the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Alex Smith #11 of the San Francisco 49ers passes against the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Frank Gore(notes) #21 of the San Francisco 49ers celebrates after scoring a touchdown against the Tennessee Titans during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vince Young(notes) #10 of the Tennessee Titans passes against the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vernon Davis(notes) #85 of the San Francisco 49ers runs after a catch as Keith Bulluck(notes) #53 of the Tennessee Titans defends during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

SAN FRANCISCO - NOVEMBER 08: Vince Young(notes) #10 of the Tennessee Titans is sacked by Delanie Walker(notes) #46 of the San Francisco 49ers during an NFL game on November 8, 2009 at Candlestick Park in San Francisco, California. (Photo by Jed Jacobsohn/Getty Images)

Tennessee Titans quarterback Vince Young(notes) runs with the ball under pressure from San Francisco 49ers defensive end Ray McDonald(notes), left, during the second quarter of their NFL football game in San Francisco, Sunday, Nov. 8, 2009.