The Ravens continued to work on the back end of their roster Monday, adding another quarterback and one more potential option to play left guard.
The team announced that it signed well-traveled quarterback Josh Johnson and offensive lineman Vlad Ducasse.
The Ravens also signed cornerback Sam Brown, an undrafted free agent out of Missouri Western State. That leaves them with a full 90 man roster.
Johnson, 30, was brought in to give the Ravens another quarterback to throw to their myriad wide receivers and tight ends during the various minicamps. With Joe Flacco recovering from December knee surgery and not expected to return to the field until training camp, the Ravens had only Ryan Mallett and Jerrod Johnson at quarterback.
Josh Johnson was a fifth-round pick out of the University of San Diego by the Tampa Bay Buccaneers in 2008. The Ravens are the eighth organization he's been a part of, and that includes two stints with both the San Francisco 49ers and Cincinnati Bengals.
In parts of seven NFL seasons, Johnson, who played for Jim Harbaugh at the University of San Diego and reunited with him in 2012 and 2014 with the 49ers, has seen action in 29 games and gone winless in five career starts. He hasn't started a game since 2011 for the Buccaneers, and he hasn't gotten in one since making one appearance for San Francisco in 2014.
Johnson spent time in four organizations last year alone, but didn't play in any games.
Ducasse, 28, took a free-agent visit to the Ravens during the second week of March, but he wasn't immediately signed. A second-round pick by the New York Jets in 2010 out of the University of Massachusetts, Ducasse has started 21 games over the past three seasons for three different teams.
Last season, he started 11 games at guard for the Chicago Bears. He's also had stints with the Minnesota Vikings and Jets.
The Ravens have several options to replace starting left guard Kelechi Osemele, who signed with the Oakland Raiders in free agency. John Urschel is the frontrunner, but they also have holdover Ryan Jensen, Ducasse and fourth-round pick Alex Lewis.