Padres acquired LHP Randy Williams from the Mariners for infielder Billy Hogan.
It looks like the Mariners did this mostly to free up a roster spot. Hogan, a 2003 fifth-round pick, hit .236/.308/.357 for short-season Single-A Eugene last season. Williams, a lefty reliever with limited upside, will compete for a spot in the San Diego bullpen next spring.