Here's the run down of 49ers-related free-agent activity so far:
* Interesting news from the Star-Ledger in New Jersey. Former No. 1 overall draft pick David Carr will visit the 49ers this weekend. The paper speculates that move might herald a battle between former No. 1 picks -- Alex Smith, of course, being the other. In my mind, a Carr signing is bad news not for Smith but for No. 2 quarterback Shaun Hill. Carr, 30, has been a back up for the Giants the last two years. He completed 21 of 33 passes last season. Carr, who is from Bakersfield, also is expected to draw interest from the Cardinals.
* Receiver Arnaz Battle has visits lined up this weekend with Pittsburgh and division rival Seattle, according to a league source. The Vikings also are interested. I'm wondering if Battle is the beneficiary of some kind words from new Seahawks special teams assistant Jeff Ulbrich, who was a special teamer alongside Battle in San Francisco and knows how tough he is. The Seahawks also are short a receiver after Nate Burleson signed with the Lions. As for the Steelers, Battle has drawn comparisons -- from former coach Mike Nolan -- with Hines Ward. Pittsburgh also hired former 49ers special teams coach Al Everest in the offseason. *Update*: With Seattle looking at former Broncos WR Brandon Marshall, Battle's visit to the Seahawks is on hold. He's still scheduled to visit the Steelers this weekend.
* National Football Post reports that free-agent offensive tackle Tony Pashos will visit with the Redskins. In addition, I've learned that he's also visiting the Broncos. A Redskins connection is something I've been predicting since January when offensive line coach Chris Foerster, with whom Pashos is close, moved to the Redskins. At the combine, both Mike Singletary and Scot McCloughan were optimistic the 49ers could retain Pashos, who they see as a right tackle only. The team also wants to retain free agent Barry Sims, who proved to be a capable back-up at left tackle last year.
* After playing very well in relief of injured left tackle Joe Staley last season, Sims has drawn interest from two other teams, according to his agent. Sims wants to return to the 49ers but will explore his options.
* Cardinals safety Matt Ware is visiting with an NFC West team, according to his agent. Which team he would not say, but I'm guessing it's San Francisco or Seattle, which has been aggressive thus far. Ware played collegiately at UCLA. Ware, 27, was a third-round pick by the Eagles in 2004. He spent the last four seasons with the Cardinals, starting three games in that span. *update* Ware is not visiting San Francisco, a team spokesman confirmed. I'd put my money on Seattle, but that's just a guess ...
I'll fill in more news as it comes ....