Miguelangel Sierra
20-Year-Old ShortstopSS
2018 Fantasy Outlook
There was no outlook written for Miguelangel Sierra in 2018. Check out the latest news below for more on his current fantasy value.
$Signed with the Astros in July of 2014.
Showing off power in Appalachian League
SSHouston Astros  R
July 20, 2016
Sierra, 18, is slashing .291/.364/.671 with eight homers and three steals in 79 at-bats in the Appalachian League.
ANALYSIS
Sierra was a top-20 prospect in the 2014 J-2 International Signing Period, but he has outperformed that ranking to date, and perhaps the only player who has been more impressive from that class has been Anderson Espinoza. Sierra is just the latest in what seems to be a never-ending pipeline of up-the-middle talent for Houston. He should definitely stick at shortstop, and if he continues to showcase this kind of pop, he'll be viewed as a top-100 prospect in short order.
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2017 Fantasy Outlook
For someone just glancing at Sierra's production in the Appalachian League, it would seem that he is one of the more exciting shortstop prospects in the lower levels of the minors. After all, he hit 11 home runs with a 170 wRC+ in 144 plate appearances, and his .343 BABIP suggests his .289 average was somewhat sustainable. Unfortunately, that stat line oversells the power potential, so Sierra might be a bit overvalued right now in dynasty leagues. He sold out a little for that pop, and projects to offer closer to average power in the majors, not plus power, which his 31-game run with Greenville hints at. He has solid tools across the board, and has a good shot at sticking at shortstop, so he is certainly a player of interest in deeper dynasty leagues if he is not being treated like a future 30-homer bat, which he is not.