Ritchie will make his next start Wednesday against the Tigers in Atlanta, Mark Bowman of MLB.com reports.
Ritchie was exceptional in his major-league debut Thursday against the Nationals, earning a win while tossing seven innings of two-run ball and striking out seven batters. He'll now stick around with the major-league rotation for the time being, with Atlanta deciding to shift Reynaldo Lopez to bullpen in order to allow him to fix some mechanical issues. With Spencer Strider (oblique) on the cusp a return from the 15-day injured list, Atlanta will likely have just one spot in the rotation available for either Ritchie or Martin Perez once Strider is back in the fold.