Matz will be available out of the bullpen for the Cardinals' upcoming two-game series versus the Royals, Derrick Goold of the St. Louis Post-Dispatch reports.
Matz remains winless at 0-6 with a 5.72 ERA through 10 starts this season. With a scheduling quirk leading to consecutive days off (Wednesday and Thursday), the Cardinals won't need a fifth or sixth starter for a while. It's possible Matz could rejoin the rotation during a road series in Texas from June 5-7. With Matthew Liberatore up in the majors, Matz may eventually be ticketed for the bullpen on a more permanent basis if he can't get his season on track.