COLORADO ROCKIESAgreed to terms with 3B Garrett Atkins on a one-year contract.
HOUSTON ASTROSNamed Craig Biggio special assistant to the general manager.
PITTSBURGH PIRATESAgreed to terms with 1B Doug Mientkiewicz on a minor league contract.
National Basketball Association
LOS ANGELES LAKERSSigned C D.J. Mbenga for the rest of the season.
National Football League
MIAMI DOLPHINSReleased 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.
National Hockey League
OTTAWA SENATORSAcquired C Cory Stillman and D Mike Commodore from Carolina for D Joe Corvo and RW Patrick Eaves.