Williams, who was signed by the 49ers as an undrafted free agent in 2011, has 3 tackles in 4 games.
Following the news, Williams posted the following on Twitter:
Proud to be apart of this organization, city and fan base for another few years! Just got done signing my extension! #49ers #GrindTime
— Ian Williams (@IWilliams95) March 11, 2013
More San Francisco 49ers News
-
49ers vs. Seahawks: NFL insider suggests Trent Williams may miss Week 18
The San Francisco 49ers may be without left tackle Trent Williams—quarterback Brock Purdy's most trusted protector—when they face the Seattle Seahawks on Saturday night at Levi's Stadium. The Week 18 matchup will decide the NFC West champion and the NFC's No. 1 seed, giving... -
49ers injury updates: Trent Williams, Christian McCaffrey miss practice ahead of Seahawks showdown
San Francisco 49ers head coach Kyle Shanahan offered injury updates on Tuesday as the team turns its attention to the regular-season finale against the Seattle Seahawks. The biggest concern coming out of Sunday night's win over the Chicago Bears was the status of left tackle... -
Lynch shares 49ers injury news on McCaffrey, Williams, Kittle, Juszczyk
San Francisco 49ers running back Christian McCaffrey did not practice on Tuesday, the team's first on-field session ahead of Saturday night's matchup with the Seattle Seahawks. McCaffrey experienced back stiffness during Sunday's win over the Chicago Bears, and the issue has... -
Fowler: 49ers have a decision to make with Trent Williams
The San Francisco 49ers may be facing a major roster decision in the near future—and it has nothing to do with absent wide receiver Brandon Aiyuk. ESPN insider Jeremy Fowler recently highlighted the looming contract situation surrounding All-Pro left tackle Trent Williams....