The Ravens have added some reinforcement on the offensive line. According to Jeff Zrebiec of the Baltimore Sun (via Twitter), the team has re-signed offensive guard Tony Bergstrom. To make room on the roster, the Ravens have waived cornerback Tony McRae.

Baltimore has already placed three offensive lineman on the injured reserve this year, including Marshal Yanda, Nico Siragusa, and Alex Lewis. Backup guard/center Matt Skura was also listed as a DNP on Thursday’s injury report due to a knee ailment, effectively leaving Luke Bowanko as the Ravens’ lone backup lineman.

Fortunately, Bergstrom is plenty familiar with Baltimore’s scheme. The 2012 third-round pick was traded to the Ravens in early September, with the organization sending a conditional seventh-rounder to Arizona. He proceeded to play in three games for the Ravens before being released earlier this week. Over his six-year career, the 31-year-old has appeared in 43 games (four starts). It’s worth noting that Bergstrom has only played 45 total snaps this season, and if continues to solely serve in a backup role, there’s no guarantee that the conditional pick will translate.

A 2016 undrafted rookie out of North Carolina A&T, McRae saw the field for five games this season, compiling a single tackle. His release leaves first-rounder Marlon Humphrey and undrafted rookie Jaylen Hill as the lone backups on the cornerback depth chart.