A back injury prevented
Brown is considered day to day. He has caught 73 passes for 779 yards and seven touchdowns over the last two seasons.
Elam is undergoing an MRI to determine the severity of the issue after suffering the injury during Saturday's practice. He played in 16 games last season and totaled 50 tackles without an interception.
To make room for Steelman, the team released quarterback Jerry Lovelock, who went undrafted.