Programming note: Watch Monday’s 49ers press conference with head coach Jim Harbaugh on CSN Bay Area and streaming live online here at 12 p.m.
The 49ers announced Monday they have signed cornerback Dax Swanson to the practice squad.
Swanson (5-11, 191) originally signed with the Indianapolis Colts as an undrafted free agent on April 30, 2013. He was placed on injured reserve following training camp and later waived by the Colts on October 29, 2013.
The 49ers are in need of another cornerback to practice. Tarell Brown was in obvious discomfort – and appeared to have difficulty breathing -- after Sunday's game with a ribs injury that knocked him out in the second quarter. Cornerback Perrish Cox was released last week.
Head coach Jim Harbaugh said he had no official update on Brown's condition.
49ers media services and Insider Matt Maiocco contributed to this report