Cardinals manager Oliver Marmol said Sunday that Mathews will remain in the team's rotation for the foreseeable future, Derrick Goold of the St. Louis Post-Dispatch reports.
The wheels had already been in motion for Mathews to get a long look at the big-league level, and he's now also needed out of necessity following the injuries to Andre Pallante (elbow) and Hunter Dobbins (forearm). Mathews is coming off easily the worst of his three major-league starts, having been roughed up for seven runs on 10 hits and one walk with three strikeouts over five innings versus the Phillies. The southpaw is set to make his home debut this weekend against the Pirates.