LOS ANGELES -- The Dodgers traded outfielder Alex Castellanos to the Boston Red Sox in exchange for outfielder Jeremy Hazelbaker and cash considerations Wednesday. Castellanos had been designated for assignment one week ago.Hazelbaker, 26, batted .257 with 11 home runs and 37 stolen bases at Triple-A Pawtucket last season. He has never played a major-league game.Castellanos, 27, played in eight games for the Dodgers last season, going 3-for-18 with a home run.