Schultz was recalled from Triple-A Buffalo on Sunday, Shi Davidi of Sportsnet reports.
The hard-throwing righty will replace Gavin Floyd in the bullpen, after a bout with right shoulder tightness forced Floyd to the DL. It's the first taste of the majors this season for Schultz, who owned a 4.24 ERA and 1.23 WHIP over 17 innings at Triple-A.