This article is part of our Minor League Barometer series.
This past week proved to be a mixed bag for some of the top pitching prospects in baseball. 19-year-old Julio Urias made his major league debut Friday, becoming the first teenager to start a game in the bigs since Felix Hernandez in 2005. Urias showed poise and promise, but lasted just 2.2 innings, allowing three runs on five hits and an uncharacteristic four walks. He did fan three batters, but was sent back to Triple-A following the game. Still, Urias will almost certainly be back with the Dodgers later this year.
Meanwhile, St. Louis Cardinals phenom Alex Reyes returned from suspension and picked up right where he left off last season. In two starts for Triple-A Memphis in a span of nine innings, Reyes allowed just one run while fanning 15 batters. His strikeout potential is massive; Reyes fanned a staggering 151 batters in 101.1 innings last season across three levels. As long as he can maintain his control, the sky is the limit for the 21-year-old right-hander.
Who else is surging, and who is sputtering as the summer draws near? The Minor League Barometer is at your service.
Jorge Bonifacio, OF, KC – The brother of speedster Emilio Bonifacio, Jorge has more power than his older sibling. The younger Bonifacio clubbed 17 homers in 2015 at Double-A, though he hit just .240. Finally bumped up to Triple-A, the 22-year-old is having his best season to date. Through 46 games, Jorge is slashing .311/.376/.559 with nine home