The Raiders announced the signing of their top draft pick Rolando McClain, on their Twitter account at a minute before midnight.
Terms for McClain’s contract, as the No, 8 overall pick from Alabama, were not disclosed.
Oakland also announced the signing on its Web site.
The Raiders gave $23.5 million in guaranteed money to Darrius Heyward-Bey, the No. 7 pick in the 2009 draft.
Having signed a contract, McClain should be available for comment following the Raiders first practice Thursday morning at Napa.
The Raiders will have walk-through style practices at 8:30 a.m. and 4:20 p.m. Thursday.