Alcantara was recalled by the Cardinals on Friday, Jenifer Langosch of MLB.com reports.
Alcantara is set to make his major-league debut in the near future, as he figures to serve out of the bullpen for St. Louis throughout the rest of the season. The 21-year-old could wind up getting an opportunity to start, depending on how the next couple of weeks go for the Cardinals, as he's posted a 4.31 ERA and 1.43 WHIP over 125.1 innings, and 22 starts for Double-A Springfield in 2017. But it seems as though the club wants Alcantara in a relief role this September, since they've had him come out of the bullpen during his past three outings in the last week with Springfield.