The main candidates to be called up from Triple-A Round Rock are left-handed reliever Joseph Ortiz, right-handers Wilmer Font and Cory Burns, catcher Robinson Chirinos and outfielders Engel Beltre and Joey Butler.
Round Rock's season comes to an end Monday, so not everybody will be called up Sunday.
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.