The San Francisco 49ers placed defensive tackle Will Tukuafu on injured reserve with a wrist injury.
Safety Colin Jones was promoted from the practice squad to take Tukuafu's spot on the roster Tuesday.
Tukuafu has notched two tackles and a fumble recovery while appearing in all four games this season. He was injured in the season opener against Seattle while recovering a fumble by quarterback Tavaris Jackson.
The 49ers (3-1) are off to a hot start and are coming off a comeback road win against Philadelphia. They lead the NFC West by two games.