Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
This converted reliever has shown some positives and negatives in his first year as a professional starter.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
O’Brien’s hanging in with the legendary Joey Gallo in the minor league home run chase, and he plays the most important position on the defensive spectrum, yet he falls behind the first tier of slugging prospects due to a variety of weaknesses.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
This independent league find has always been old for his levels, but he has legitimate stuff and deception.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
Black might have the most velocity of any minor leaguer.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
A small Venezuelan southpaw, Lopez has command of three solid pitches at a young age.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Jake Johansen, RHP, Washington Nationals (Profile)
Level: Low-A  Age: 23   Top-15: N/A   Top-100: N/A
Line: 26 IP, 28 H, 20 R, 23/16 K/BB, 5.88 ERA, 3.80 FIP

Summary
Johansen has premium size and arm strength, with enough supplemental skills to make him very interesting.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
Part of the Jake Peavy bounty, Montas combines premium arm speed with a few other developing skills.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
This 2013 2nd-rounder is a unique mix of skills and drawbacks.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Raul Mondesi, SS, Kansas City Royals (Profile)
Level: High-A   Age: 18   Top-15: 3rd   Top-100: 46th
Line: 89 PA, .304/.382/.430, 1 HR, 9 BB, 23 K

Summary
One of the game’s top shortstop prospect is holding his own against much older players.

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Each weekday during the minor-league season, FanGraphs is providing a status update on multiple rookie-eligible players. Note that Age denotes the relevant prospect’s baseball age (i.e. as of July 1st of the current year); Top-15, the prospect’s place on Marc Hulet’s preseason organizational list; and Top-100, that same prospect’s rank on Hulet’s overall top-100 list.

Summary
Formerly an all-or-nothing power hitter, the early returns on Gallo’s 2014 show him to be combining his once-in-a-generation power with an increasingly sound approach at the plate.

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