‘San Francisco has allowed just one 100-yard rusher in its last 44 games, that being ex-Bill and current Seattle Seahawk Marshawn Lynch on Christmas Eve last season. The Niners led the NFL in run defense in 2011, yielding only 77.3 yards per game. They allowed just three rushing TDs all last season, the fewest since the NFL went to a 16-game schedule in 1978.’