With tight end Crockett Gillmore (back) and Maxx Williams (concussion) dealing with injuries and Nick Boyle suspended for the remainder of the regular season, the Ravens added a pair of tight ends Tuesday.
Konrad Reuland was promoted from the practice squad, on which he has been on and off for the past two seasons, and signed Richard Gordon, who was released last week by the Denver Broncos.
Boyle's suspension created one open roster spot and cornerback Cassius Vaughn was released to make a second opening.
Tight end Harold Spears was also added to the practice squad to ensure the team has enough tight ends to work with this week. Spears was most recently with the Seattle Seahawks practice squad.
Reuland, 28, played at Stanford under Jim Harbaugh, then spent 2011 on the San Francisco 49ers practice squad under him. He played 16 games and made three starts in 2012 for the New York Jets, then played 12 games the next year and joined the Ravens practice squad in November 2014.
He spent two weeks with the team before being released, but was re-signed this past offseason and has been on and off the practice squad this season after being cut at the end of traning camp.
Gordon spent most of this season with the Broncos, his fifth NFL team since the Oakland Raiders selected him in the sixth round of the 2011 NFL draft.
Coach John Harbaugh alluded to his signing Monday by saying they were bringing someone in who was familiar with the system. Gordon ran a similar system under former Ravens offensive coordinator and current Broncos coach Gary Kubiak in Denver.
Harbaugh said Williams has indicated he will be able to play this week, and the coach thinks he and Gillmore "both have a really good chance to play."
But Tuesday's moves fulfill Harbaugh's pledge that they would make sure they have backups at tight end, an important position in the Ravens' offense.