SAN FRANCISCO - NOVEMBER 08:  Chris Johnson #28 of the Tennessee Titans runs is tackled by Patrick Willis #52 of the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California. Getty Images logo Getty Images 3 weeks ago

SAN FRANCISCO - NOVEMBER 08: Chris Johnson #28 of the Tennessee Titans runs is tackled by Patrick Willis #52 of the San Francisco 49ers at Candlestick Park on November 8, 2009 in San Francisco, California.