Reyes is being considered for Saturday's start in Miami, Derrick Goold of the St. Louis Post-Dispatch reports.
The 21-year-old was lifted from his start for Triple-A Memphis on Tuesday after three innings (57 pitches), but his exit was not due to injury. It seems Reyes, the top prospect in the Cardinals' organization and one of the top pitching prospects in all of baseball, could make his much-anticipated debut this weekend, but the team is saying he's merely "insurance" in case Tyler Lyons is needed in long relief in the days ahead.