The Royals recalled Rojas from Triple-A Omaha on Tuesday.
The 31-year-old was up with the Royals for a few days in early June and will now get another chance in the majors since Maikel Garcia (hand) was placed on the injured list. Nick Loftin has been operating as Kansas City's primary third baseman with Garcia banged up, while Rojas is likely to fill a utility role while up in the majors.