Tukuafu becomes the first 49er since the regular season began to go on IR.
Tukuafu played in all four games this season, recording two tackles and recovering a fumble. That play came during a 33-17 season-opening victory over the Seattle Seahawks. Tarvaris Jackson was sacked by Parys Haralson, who forced a fumble that was recovered in the air by Tukuafu on his first career play from scrimmage.
Copyright 2011 by The Associated Press