St. Louis Cardinals starting pitching prospect Michael McGreevy is set to join the major league roster this afternoon, according to Katie Woo of The Athletic. McGreevy got a brief taste of the major leagues earlier this summer as he allowed just one run across seven innings. At Triple-A this season, the No.10 ranked prospect in the St. Louis system has held a 4.02 ERA and a 1.31 WHIP through 150 innings of work. Woo further reported that the prospect is expected to be deployed in a long relief role for now but could eventually find his way into the starting rotation over the final week of the season. McGreevy could be a favorable streaming candidate if he were to make a start next week.