CBS Sports' Jason La Canfora reports the 49ers are "making a push" to re-sign free agent CB Tarell Brown prior to the start of free agency. Brown just turned 29 in January and has started 42 games for the 49ers the past three seasons. He's spent his entire seven-year career in San Francisco and is still a productive corner on the outside. Brown is our No. 9 free-agent corner. He shouldn't command much more than $4-5 million annually.