Ranking the St. Louis Cardinals’ Top 10 Prospects Heading Into 2015

By Drew Jenkins

Ranking the St. Louis Cardinals’ Top 10 Prospects Heading Into 2015

St. Louis Cardinals
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The St. Louis Cardinals seem to always have one of the best minor league systems in baseball, and moving forward it will be no different. Currently, their farm is stocked with arms, and it also features some intriguing position players. Without further ado, here are the Cardinals' top 10 prospects heading into 2015.

10. Aledmys Diaz

Aledmys Diaz St. Louis Cardinals
Scott Mitchell-USA TODAY Sports

10. Aledmys Diaz

Aledmys Diaz St. Louis Cardinals
Scott Mitchell-USA TODAY Sports

Though he was limited to 47 games this year after signing with the Cardinals for million prior to the season, Diaz did perform well, hitting .273/.324/.441 between High-A and Double-A. The 24-year-old middle infielder is expected to hit for a high average and gap power, though he showed more power than expected in 2014. Reports are mixed about his defense, with some believing he could stick at short and others thinking he will move off.

9. Charlie Tilson

Charlie Tilson St. Louis Cardinals
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9. Charlie Tilson

Charlie Tilson St. Louis Cardinals
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The 21-year-old outfielder started the year successfully, hitting .308/.357/.414 in 87 games at High-A, but he regressed to a .237/.269/.324 in a 31-game Double-A cameo. He may never hit for a ton of power, but he's shown nice contact abilities and the occasional gap power, which is aided by his above-average speed. That speed makes him a good defender in center field, where he'll stick. Tilson has a chance to be a prototypical leadoff hitter.

8. Jack Flaherty

Jack Flaherty St. Louis Cardinals
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8. Jack Flaherty

Jack Flaherty St. Louis Cardinals
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Flaherty, the 34th overall pick in the 2014 draft, stands out for his upside. His fastball, curveball and changeup are all solid offerings, and each pitch could become above-average-or-plus down the line. He also adds a slider that has flashed average potential. Flaherty has frontline upside thanks to his arsenal, and his solid control and pitchability for just a 19-year-old make him more likely to reach his ceiling than your average teenager.

7. Tim Cooney

Tim Cooney St. Louis Cardinals
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7. Tim Cooney

Tim Cooney St. Louis Cardinals
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Cooney has flown under the radar thanks to the Cardinals' numerous high-profile arms, but he is now big-league ready after a solid 2014 at Triple-A in which he threw a 3.47 ERA, 6.8 K/9 and 2.7 BB/9. Cooney's four-pitch mix is simply average, but the left-hander's great control allows his overall package to play up. He could be a back-end starter soon, but given the Cardinals' numerous arms, he will likely start his MLB career in the 'pen.

6. Luke Weaver

Luke Weaver St. Louis Cardinals
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6. Luke Weaver

Luke Weaver St. Louis Cardinals
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Weaver, the Cardinals' first pick in 2014, has the chance to be one of their classic fast-risers. His changeup is his best pitch, and could become plus, and his fastball flashes above-average, though its velocity can get inconsistent. His curveball is behind those two pitches, but it is still an average pitch. His polish and makeup make him get the most out of his stuff, and that is why he should be a No. 3 or 4 starter soon.

5. Randal Grichuk

Randal Grichuk St. Louis Cardinals
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5. Randal Grichuk

Randal Grichuk St. Louis Cardinals
Kelley L Cox-USA TODAY Sports

Grichuk made his MLB debut in 2014, hitting .245/.278/.400. The outfielder has hit for solid power in his minor league career, posting a .497 slugging percentage. He also has the ability to hit for contact as his .279 minor league batting average shows. But, he can struggle to control the strike-zone, and he needs to hone that in. Defensively, his fringe-average speed and average arm limit him to the corners.

4. Rob Kaminsky

Rob Kaminsky St. Louis Cardinals
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4. Rob Kaminsky

Rob Kaminsky St. Louis Cardinals
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The 2013 first-rounder had a successful full-season debut in 2014, posting a 1.88 ERA and a 2.7 K/9, though his 7.1 K/9 did leave a bit more to be desired. The lefty throws two pitches with plus potential in his fastball and curveball, and he has a feel for his changeup, which could become a well above-average pitch. He has great makeup and good pitchability for a 20-year-old, and the ceiling of a frontline starter is certainly there.

3. Stephen Piscotty

Stephen Piscotty St. Louis Cardinals
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3. Stephen Piscotty

Stephen Piscotty St. Louis Cardinals
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Piscotty was solid, though unspectacular, at Triple-A in 2014, hitting .288/.355/.406. His ability to hit for power has come into question at points, but it should be at least average. His contact abilities and advanced feel for hitting mean he will always get the most out of his swing. An above-average arm and solid range make him a decent defender in a corner outfield spot, and he could factor into the Cardinals' right field plans in 2015.

2. Marco Gonzales

Marco Gonzales St. Louis Cardinals
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2. Marco Gonzales

Marco Gonzales St. Louis Cardinals
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Gonzales swept through the Cardinals' system in 2014, starting at High-A and finishing in the big league bullpen during the playoffs. He dominated in the minors over three levels, posting a 2.43 ERA, 2.0 BB/9 and 8.6 K/9. The lefty has a nice four-pitch mix that includes a plus changeup, and he pairs it with great command and a feel for pitching. He may never be an ace, but he could be a good No. 3 or fringe No. 2 starter soon.

1. Alexander Reyes

Alexander Reyes St. Louis Cardinals
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1. Alexander Reyes

Alexander Reyes St. Louis Cardinals
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Reyes impressed with his stuff in 2014, showing two-plus to plus-plus pitches in his mid-90s fastball and curveball and another above-average pitch in his curveball. At 6-foot-3, 185 pounds, there's room to add muscle as well. His full-season debut was a success, as he put up a 3.62 ERA and 11.3 K/9, albeit with a 5.0 BB/9. He is a bit of a project thanks to iffy control, but he has far-and-away the highest upside of any pitcher in the system.

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