NFL.com "The 49ers' biggest move in free agency thus far has been walked back a bit. Nose tackle Ian Williams signed a five-year, $27.5 million deal to keep him in the Bay Area through his prime, but that pact has been reduced to a one-year deal due to the results of a team physical, two sources..." March 21
CSN Bay Area "The 49ers on Wednesday morning reached a five-year contract agreement with nose tackle Ian Williams, a league source told CSNBayArea.com. The move to secure Williams, who was scheduled to be an unrestricted free agent, comes with the free-agent signing period set to open Wednesday at 1 p.m...." March 09
#49ers Ian Williams (broken left ankle) having surgery today and out for the year Jim Harbaugh says.
CSN Bay Area "With two players at the same position scheduled to reach the free-agent market on Tuesday, the 49ers reached a contract extension with nose tackle Ian Williams. Williams, who signed with the 49ers as an undrafted rookie from Notre Dame in 2011, has appeared in just four games in two seasons...." March 11