The Raiders continued to rebuild their secondary Tuesday, announcing the signings of Mike Jenkins and Usama Young.
Jenkins is the second presumptive starter at cornerback the Raiders have signed in the past two weeks.
The Raiders also signed defensive end Andre Carter, who played 12 games in Oakland last season.
Last week, veteran Tracy Porter was signed to the position that until then included only Phillip Adams, Brandian Ross and Chimdi Chekwa.
Jenkins is a veteran of 71 games and 48 starts for the Dallas Cowboys. Last season, Jenkins played in 13 games with two starts.
Young, a seven-year veteran, played the past two seasons with the Cleveland Browns, starting 11 games last season.
With Matt Giordano an unrestricted free agent and Michael Huff having been released and signed with the Baltimore Ravens, Young becomes the prime candidate to start at free safety.
Carter is the second of the Raiders' 17 unrestricted free agents to rejoin the team, along with right tackle Khalif Barnes.
A Robert Morris internal investigation into former basketball coach Mike Rice found no evidence of the "coaches against player" brawls alleged by an ex-Rutgers employee, though one former Colonial contacted by the school said Rice used anti-gay slurs on several occasions and engaged in a shoving match with a player during halftime of a game.
Rice coached at the suburban Pittsburgh school from 2007-10 before taking the job at Rutgers, which fired Rice last week after video of the coach physically and emotionally abusing players became public. Former Rutgers employee Eric Murdock said Rice told him players and coaches at Robert Morris fought several times during practices.
The Associated Press contributed to this report.