Raiders sign 4th-rounder Burris

Linebacker Miles Burris, a fourth-round pick out of San Diego State, signed with the Raiders, who have signed four of their six draft picks over the past two days.

Defensive end Jack Crawford (fifth round, Penn State), defensive tackle Christo Bilukidi (sixth, Georgia State) and linebacker Nathan Stupar (seventh, Penn State) agreed to deals Thursday.

Burris was a two-time All-Mountain West Conference first-team selection at San Diego State, leading the Aztecs with 78 tackles last season.

Oakland also announced the signing of offensive lineman Nick Howell, an undrafted free agent out of Southern California in 2010 who has spent time with the Titans and 49ers. Fullback TreShawn Robinson was released.