Turner, 29, went undrafted out of New Mexico in 2007. He joined the Jets as a free agent, and spent five years in New York, working mostly as a backup and on special teams. He signed with the Rams for the 2012 season, and started all 16 games, grading out as the 20th-best center in the league per Pro Football Focus (subscription required). PFF’s advanced metrics weren’t so kind to Turner in 2013, when he ranked as the third-worst center in the NFL.
In Chicago, Turner will join a offensive line that was fifth-best at pass-protection, according to Football Outsiders. However, backup center Brian De La Puente sprained his MCL today and will miss a few weeks, while right guard Kyle Long has only recently returned to the field after battling a viral infection. Turner’s ability to handle both center and guard will come in handy for the Bears as the season progresses.