This article references A, Aaron Hicks, Byron Buxton, C, OF, SP, SS, TE, Trea Turner and more! Hello and welcome to another edition of the prospect call-up watch. There haven't been many prospect call-ups this week. We'll be discussing three high upside future studs. We begin, oddly enough, in Germany. Editor’s Note: to read about even more MLB prospects, rookies and potential call-ups, be sure to check out our MLB prospects for fantasy baseball homepage which has lots of great weekly analysis.   MLB Prospect Updates & Recent Call-Ups - Week 20 Aaron Altherr (OF, PHI,[...]Keep on reading: Recent Prospect Call-Ups and Their Fantasy Values (Altherr, Turner, Buxton)