AMERICAN FOOTBALL CONFERENCE

BALTIMORE — Roster addition: LB Adrian Hamilton (from Ravens practice squad). Reserve/injured: LB Jameel McClain (spinal cord contusion)

JACKSONVILLE — Activated: LB Daryl Smith (from reserve/injured, designated for return). Reserve/injured: S Dwight Lowery (foot).

NEW ENGLAND — Roster addition: WR Kamar Aiken (from Patriots practice squad).

NATIONAL FOOTBALL CONFERENCE

DALLAS — Placed on waivers: WR Anthony Armstrong. Roster addition: OG Ronald Leary (from Cowboys practice squad).

MINNESOTA — Placed on waivers: OG Mark Asper; TE Allen Reisner. Activated: CB Chris Cook (from reserve/injured, designated for return). Roster addition: DE George Johnson (from Vikings practice squad).

SAN FRANCISCO — Roster addition: LB Cam Johnson (from 49ers practice squad).

TAMPA BAY — Roster addition: LB Markus White (from Buccaneers practice squad). Reserve/injured: DE Aaron Morgan (shoulder).