The Dodgers claimed right-handed reliever Casey Fien, 32, off waivers from Minnesota. Fien had a 7.90 earned-run average in 14 games this year and a 4.05 ERA over seven years with the Twins and Detroit Tigers. . . . Right-hander Mike Bolsinger, who has not pitched this season after straining an oblique muscle during spring training, started a rehabilitation assignment Saturday with Oklahoma City. Such assignments are limited to 30 days. . . . Adrian Gonzalez will be the designated hitter Sunday, Roberts said, with second baseman Chase Utley or third baseman Justin Turner likely to play first base. Gonzalez has started all but one game at first base, when catcher Yasmani Grandal played there. . . . The Cy Young matchup Thursday at Dodger Stadium: Clayton Kershaw, who has won three Cy Young awards, against the New York Mets' Bartolo Colon, who won his Cy Young for the Angels in 2005 — when Kershaw was in high school. . . . Shades of home: A mariachi band serenaded several dozen road-tripping Dodgers fans on the steps outside Rogers Centre on Saturday morning.