Del Castillo will start at designated hitter and bat seventh in Monday's game against the Pirates.
Del Castillo will be included in the lineup for a fourth straight matchup with a right-handed starter or primary pitcher, after going 4-for-11 with a double, a stolen base, three runs and an RBI over his prior three starts. The 26-year-old will need to produce well at the plate in order to continue receiving steady at-bats versus righties, but he'll have a path to playing time while Arizona has three key hitters (Lourdes Gurriel, Jordan Lawlar and Tommy Troy) on the shelf.