Chicago signed Carlson from its practice squad to its 53-man roster Wednesday, Brendan Sugrue of USA Today reports.
When Cole Kmet went to the Bears' injured reserve list with a season-ending knee injury following Week 7, it left the team with just two healthy tight ends on its active roster, so the move gives the club some much-needed depth at the position. As long as starter Colston Loveland and rookie third-rounder Sam Roush remain available, though, Carlson's role will likely be limited as the season progresses.