PHOENIX >> Welington Castillo doubled home the go-ahead run in the eighth inning, capping a pair of comebacks by the Arizona Diamondbacks in a 10-6 win over the Dodgers on Monday night.Castillo doubled off reliever Pedro Baez (1-1) to drive in Jake Lamb with none out. The Diamondbacks, who trailed 4-0 and 6-4, added three more runs in the inning on a bunt single, a throwing error by Baez, and Paul Goldschmidt's two-out, two-run single off J.