LOS ANGELES -- The Dodgers have signed reliever Sergio Santos to a minor league contract with an invitation to spring training.The 31-year-old right-hander is 7-12 with a 3.89 ERA and 39 saves in 180 games over five seasons with the Chicago White Sox and Toronto Blue Jays.Santos is from Los Angeles and attended Mater Dei High in Santa Ana, California. He was originally selected by the Arizona Diamondbacks with the 27th overall pick in the 2002 first-year player draft.