Tukuafu has signed with the Seahawks as a free agent, Nick Eaton of the Seattle Post-Intelligencer reports.

This is a result of Derrick's Coleman's season ending broken foot, which left the Seahawks without a real fullback for their run game. Tukuafu saw time on the defensive line as well as fullback during his time with the 49ers, but Pete Carroll said the team's interest in him is at fullback.

Tukuafu (concussion) has been placed on the IR, CSN Bay Area reports.

Tukuafu suffered a concussion in the preseason, and while it likely isn't a season-ending injury, the 49ers opted to place him on season-ending IR in order to protect him from the roster cuts heading into the season.

Tukuafu left Sunday's preseason game with a concussion, CSN Bay Area reports.

Tukuafu will undergo mandatory concussion protocol and his status for the season opener against Dallas is currently unknown.

49ers FB Will Tukuafu (knee) is listed as questionable for Sunday's NFC Championship Game.

Tukuafu practiced on a limited basis this week despite suffering a sprained MCL in the 49ers' Divisional Round win. Barring a setback, he'll serve as Frank Gore's lead blocker for Sunday's NFC Championship.

49ers FB Will Tukuafu (knee) remained limited in Thursday's practice.

Tukuafu suffered a knee injury in the 49ers' Divisional Round win, but has yet to miss any practice time. Barring a setback, he should be healthy enough to serve as Frank Gore's lead blocker for Sunday's NFC Championship Game.

49ers FB Will Tukuafu (knee) participated in Wednesday's practice, getting in a limited session.

It's an extremely good sign after Tukuafu went down in a heap in Sunday's win over the Panthers. Barring a setback, he's now on track to clear the way for Frank Gore against the Seahawks. If Tukuafu can't go, San Francisco will be forced to rely on some combination of Anthony Dixon and TE Vance McDonald.

49ers coach Jim Harbaugh was "encouraged" by how FB Will Tukuafu (knee) was moving around on Monday.

Harbaugh didn't comment on Tukuafu's status for the NFC Championship Game, but it appears there's at least a slim chance he suits up. The Sacramento Bee reported Sunday evening the "early indications" were that Tukuafu suffered a sprained MCL. If that diagnosis holds, it's highly unlikely he'd be active in Seattle. That would leave Anthony Dixon and TE Vance McDonald to pave the way for Frank Gore.

Per the Sacramento Bee, "early indications" are 49ers FB Will Tukuafu escaped Sunday with an MCL sprain.

The injury appeared more serious on the field, so an MCL sprain would be good news. Tukuafu has been filling in for Bruce Miller as San Francisco's starting lead blocker. He's going to be questionable for the NFC Championship game.

49ers FB Will Tukuafu exited Sunday's Divisional Round game with a first-quarter knee injury.

Tukuafu recently converted from defensive line to fullback, replacing Bruce Miller after a year-ending injury. Tukuafu did walk off the field under his own power, but is questionable to return.

49ers released DE Will Tukuafu with an injury settlement.

Tukuafu was waived/injured with an undisclosed injury last week. Tukuafu appeared in 14 games last season, but was held off the stat-sheet. It's possible he'll be re-signed later this year.

49ers waived DE Will Tukuafu.

It's a bit of a surprise, as Tukuafu has been with the 49ers since 2010, but he's also notched zero career tackles. He played limited snaps on special teams.

49ers signed exclusive rights free agent DE Will Tukuafu to a two-year contract extension.

After spending the majority of the 2010 season on the practice squad, Tukuafu appeared in five games last season before suffering a season-ending wrist injury. The Niners are high on his motor and work ethic as a reserve/special teamer.

49ers placed DE Will Tukuafu on injured reserve, ending his season.

The extent of the injury is unknown, but this is the roster deletion needed to create room for S Colin Jones. A former undrafted free agent out of Oregon, Tukuafu played 17 snaps in the first three games before being inactive for Week 4. Rookies Demarcus Dobbs and Ian Williams could move up the depth chart.

49ers promote Will Tukuafu from their practice squad.

Tukuafu takes the roster spot of OLB Travis LaBoy (I.R., knee). The undrafted rookie provides depth for the Niners' front seven for their remaining two games, and will likely get a shot to showcase the skills that earned him the Schaffeld Award (outstanding defensive lineman) as a senior at Oregon.