Ponce de Leon will likely be called up as the Cardinals' 29th man and start Game 2 of Tuesday's doubleheader against the Twins, Anne Rogers of MLB.com reports.
Ponce de Leon spent just over a week at the Cardinals' alternate training site, but he'll likely make a brief appearance in the majors to start the second half of Tuesday's twin bill. The right-hander has struggled over five appearances (four starts) as he carries a 7.82 ERA and 1.89 WHIP over 12.2 innings.