Ruf was one of six non-roster players the Giants bumped up the 40-man roster and 30-man Opening Day roster in advance of Thursday's opener versus the Dodgers. Back in North America after a three-year stint in the Korea Baseball Organization, Ruf will provide the Giants with some right-handed power off the bench. He could find himself in the lineup regularly versus southpaws, against whom he's posted a .299/.379/.542 career slash line (150 wRC+).