* WR Anquan Boldin. The 49ers officially announced that they have agreed to a trade for Boldin, the former ravens receiver. In exchange, the 49ers will send to Baltimore the second of their two sixth-round picks. The trade is pending a physical.
* DL Glenn Dorsey. The Chiefs free agent will visit the 49ers on Wednesday. San Francisco is looking at him as a possible replacement for nose tackles Isaac Sopoaga and Ricky Jean Francois, who are free agents on their own visits. (See: below)
* S Charles Woodson. The former Packers and Raiders defensive back will pay a visit to the 49ers on Wednesday, ESPN reported.
Others on the radar:
* Miami CB Sean Smith
* Oakland DT Desmond Bryant **Update** Bryant will sign with the Browns
* Washington LB Lorenzo Alexander (special teams)
* Jets S LaRon Landry
* Falcons DE John Abraham (visited)
* QB Alex Smith. The 49ers officially announced the trade that in principle occurred last month. Smith goes to Kansas City in exchange for the Chiefs' second-round pick (34th overall) and a conditional pick next season. Smith must pass a physical in Kansas City for the trade to be executed.
* S Dashon Goldson: He has a visit scheduled with the Buccaneers, multiple outlets are reporting. Tampa Bay also is interested in Landry.
* TE Delanie Walker: **Update** Walker has agreed to terms on a four-year deal with the Titans, his agent, Vincent Taylor, said this afternoon. ESPN's Adam Schefter reporters the Titans, who likely will lose Jared Cook, already are working on a deal for Walker. If they pay him like a no. 1 TE, there's little likelihood he'll be back with the 49ers.
* NT Isaac Sopoaga: **Update** Sopoaga agreed to a three-year deal with Philadelphia worth nearly $12 million overall and including about $5 million guaranteed. He'll make a visit to the Eagles, who would use him as the centerpiece in their 3-4 alignment.
* DL Ricky Jean Francois: He'll also visit the Eagles, where he can play multiple positions in their front. A trip to Indianapolis could come next for Jean Francois, who has five suitors.
-- Matt Barrows