The Dodgers selected Rortvedt's contract from Triple-A Oklahoma City on Tuesday.
The Dodgers traded for Rortvedt shortly before the trade deadline Monday, and with Dalton Rushing (arm) and Will Smith (neck) both on the injured list, Rortvedt figures to make a few starts in the majors to begin his tenure with his new organization. With fellow backstop Hunter Feduccia also joining the team, Eliezer Alfonzo was optioned to Triple-A, and Chuckie Robinson was designated for assignment.