UPDATE (Tuesday, 8:05 a.m.) -- The Raiders have officially signed Mike Jenkins, the team confirmed in a press release Tuesday morning.
The Raiders have come to an agreement with unrestricted free agent cornerback Mike Jenkins, a source with knowledge of the situation has confirmed to CSNCalifornia.com, though terms were not yet known.
Jenkins, 28, was a first-round draft choice of Dallas in 2008 and enjoyed his his best season in 2009, when he was named a Pro Bowler after he had five of his career eight interceptions.
His playing time, though, went down with the Cowboys last season as he appeared in 13 games, starting a career-low two. He had a burn-rate of 50 percent in 2012, surrendering 12 completions on 24 targets for 180 yards with one touchdown. Jenkins was credited with three passes defensed.
In his his five-year career, the 6-feet, 200-pound Jenkins has played in 71 games, starting 48.
Jenkins is the second UFA cornerback who struggled last season but in need of a fresh start Raiders general manager Reggie McKenzie has brought in to Oakland in less than a week as Tracy Porter signed last Wednesday.
The two immediately upgrade the Raiders' secondary.
McKenzie has made the defense the main priority thus far in the offseason with eight of the nine free agents signed being defensive players -- defensive end Jason Hunter, defensive tackles Pat Sims and Vance Walker, linebackers Kaluka Maiava, Nick Roach and Kevin Burnett and Jenkins and Porter at cornerback. The other signed free agent, Alex Barron, is an offensive tackle, and the Raiders also traded for quarterback Matt Flynn.