AMERICAN FOOTBALL CONFERENCE

DENVER — Practice-squad contracts expired: CB Mario Butler; OG Lonnie Edwards; WR Greg Orton.

HOUSTON — Practice-squad contracts expired: TE Logan Brock; WR Kashif Moore; TE Steve Skelton: TE Phillip Supernaw.

NEW ENGLAND — Roster addition for 2013: RB James Develin; WR Jeremy Ebert; WR Andre Holmes; DT Tracy Robertson; LB Jeff Tarpinian.

NATIONAL FOOTBALL CONFERENCE

ATLANTA — Roster addition for 2013: WR Marcus Jackson; OG Jacques McClendon; DT Micanor Regis; WR James Rodgers; LB Pat Schiller; TE Andrew Szczerba; CB Peyton Thompson; RB Josh Vaughan.