Baseball

Los Angeles Dodgers -- Signed free-agent OF Chris Gwynn. Optioned IF Rafael Bournigal to Triple-A Albuquerque. Designated P Al Osuna for assignment.

Oakland Athletics -- Placed 2B Brent Gates (sprained right thumb) on the 15-day DL. Recalled IF Fausto Cruz from Triple-A Tacoma.

Texas Rangers -- Purchased the contract of P Rick Helling from Triple-A Oklahoma City. Optioned P Darren Oliver to Oklahoma City.

Hockey

San Jose Sharks -- Recalled C Kip Miller and D Michal Sykora from IHL Kansas City.