Here is an updated list of the roster moves that the 49ers have made during free agency so far and the players that the team may be interested in. This listing will be updated throughout the day.

The big news right now is defensive end Justin Smith's visit to the 49ers today.

Signed

WR Isaac Bruce (Rams - 2-yr, $6 mil)
CB Allen Rossum (Steelers - 1-yr, $870,000)
LB Dontarrious Thomas (Vikings - 2-yr)

After being unable to come to an agreement on a new contract in St. Louis, Bruce was cut by the Rams. 49ers offensive coordinator Mike Martz is very familiar with Bruce and likely influenced the decision to go after him. Bruce is 35 years old. He was signed on Friday. Rossum will serve as the team's kick-returner. Not a good sign for WR Michael Lewis and RB Maurice Hicks. Thomas is an interesting signing. Some believe that he will replace Derek Smith, who was released by the team, while others believe that he was signed for depth.

Agreed to terms

RB DeShaun Foster (cut by the Panthers - 2-yr / $1.8 mil)
QB J.T. O'Sullivan (Lions - 1-yr / NFL min w/ $40,000 signing bonus)

Foster will help shoulder the load behind running back Frank Gore. O'Sullivan will serve as the 49ers' third quarterback as Alex Smith and Shaun Hill compete for the starting job.

Confirmed Interest

DE Justin Smith (Bengals - currently in the Bay Area)
DE Marques Douglas (49ers)

Smith has visited with the 49ers and will be spending the rest of the evening with the coaches. He is scheduled to meet with the Vikings on Saturday. The 49ers are interested in bringing back Douglas, but are willing to risk letting him test free agency.

Rumored Interest

G Alan Faneca (Steelers)

News of the 49ers' interest in Faneca came up late Thursday night. Rumors have been back and forth regarding Briggs. The NFL is currently investigating rumors that the 49ers tampered with Briggs last offseason.

Out of the Running

LB Lance Briggs (Bears)
WR Muhsin Muhammad (Bears - signed by Panthers)
WR Bernard Berrian (Bears)
LB Calvin Pace (Cardinals)

Matt Maiocco of the Press Democrat reports that the 49ers are no longer interested in linebacker Lance Briggs.

Internal Moves

QB Alex Smith (exercised a multimillion-dollar buyback clause)
RB Michael Robinson (3-yr contract extension)

Lost

T Kwame Harris (Raiders)
G Justin Smiley (Dolphins)