BASEBALL

National League

COLORADO ROCKIES—Agreed to terms with 3B Garrett Atkins on a one-year contract.

HOUSTON ASTROS—Named Craig Biggio special assistant to the general manager.

PITTSBURGH PIRATES—Agreed to terms with 1B Doug Mientkiewicz on a minor league contract.

National Basketball Association

LOS ANGELES LAKERS—Signed C D.J. Mbenga for the rest of the season.

FOOTBALL

National Football League

MIAMI DOLPHINS—Released QB Trent Green, WR Marty Booker, OT L.J. Shelton, DT Keith Traylor, OT Anthony Alabi, DT Anthony Bryant, OT Marion Dukes, DT Marquay Love and OT Joe Toledo.

HOCKEY

National Hockey League

OTTAWA SENATORS—Acquired C Cory Stillman and D Mike Commodore from Carolina for D Joe Corvo and RW Patrick Eaves.