By Bill Plunkettbplunkett@ocregister.com @bplunkettocr on TwitterPITTSBURGH >> The sun will come up tomorrow. We assume. Nothing is certain anymore.Clayton Kershaw allowed four runs in the second inning Sunday night -- more runs than he had allowed in 25 of his previous 26 starts -- and took only his second loss of the season as the Dodgers lost to the Pittsburgh Pirates, 4-3.