The Raiders are investigating the possibility of signing tight end Kellen Winslow Jr. as a replacement for Brandon Myers, the NFL Network reported Monday.
Winslow was released by the New England Patriots last September and did not play in 2012 after knee surgery.
In other news, the Raiders signed defensive tackle Vance Walker.
Walker, 6-foot-2, 305 pounds, is the sixth defensive player the Raiders have signed since the beginning of free agency, joining linebackers Kaluka Maiava, Nick Roach and Kevin Burnett, defensive tackle Pat Sims and defensive end Jason Hunter.
In four seasons with the Falcons, Walker has played in 58 games with 11 starts.