The Marlins recalled De Los Santos from Triple-A Jacksonville on Saturday.
De Los Santos has spent the vast majority of the season at Jacksonville, where he owns a .283/.347/.496 slash line with 19 homers, 66 RBI, 49 runs and 18 steals through 401 plate appearances. He'll now rejoin the parent club to give the Marlins extra flexibility at first base while Kyle Stowers (hamstring) is on the injured list. Logan Driscoll was optioned to Triple-A in a corresponding move.