Neal had been discussing a contract with the Raiders and apparently a deal has been consummated. While the Raiders have yet to make an announcement, Neal was participating in the team's mandatory minicamp Friday morning wearing No. 41.
Oakland will be the 38-year-old Neal's eighth NFL team since he entered the league in 1993. Known as one of the best blocking fullbacks ever to play in the NFL, Neal spent last season with the Baltimore Ravens and the previous five with the San Diego Chargers.
The Raiders also signed running back Gary Russell, who was most recently with Pittsburgh and Cincinnati.
Bill Williamson covers the AFC West for ESPN.com.