The Raiders activated Ross from injured reserve Saturday, Josh Dubow of the Associated Press reports.
Ross (foot) was designated to return from injured reserve Wednesday, per the NFL's official transaction log.
Ross (foot) was placed on injured reserve Friday.
Ross suffered a foot injury in Sunday's game against New England and didn't return.
Ross (shoulder) inked a one-year contract with the Raiders on Thursday, Michael Gehlken of The Dallas Morning News reports.
Ross will be placed on injured reserve Saturday and miss the rest of the season due to a shoulder injury, Michael Gehlken of The Dallas Morning News reports.
Ross suffered a hand injury during Monday's practice, Michael Gehlken of The Dallas Morning News reports.
Ross signed a one-year contract with the Cowboys on Friday, Ian Rapoport of NFL Network reports.
Ross had 14 tackles (six solo), one sack and one forced fumble in 13 games this season.