The Ravens brought guard Parker Ehinger up from the practice squad and released recently signed center Jake Brendel on Saturday.
Baltimore signed Brendel on Wednesday but determined that Ehinger better helps bolster their offensive line depth at this time.
The Ravens signed Ehinger, a fourth-round pick of the Kansas City Chiefs in 2016, to their practice squad in mid-September.
Ehinger, 26, started four games at left guard as a rookie before suffering a season-ending knee injury. He started the 2017 season-opener at right guard but was inactive the rest of the season.
Ehinger was traded to the Dallas Cowboys the following offseason, then suffered another season-ending knee injury. He bounced to the Jacksonville Jaguars and Arizona Cardinals earlier this year before landing with Baltimore.
The Ravens have been looking for added offensive line depth since starting center Matt Skura suffered a season-ending knee injury on Monday Night Football in Los Angeles. With undrafted rookie Patrick Mekari expected to make his first career start, the Ravens needed a backup along the interior offensive line.
