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Jack Leathersich

LHP Jack Leathersich has been non-tendered by the Cubs, Adam Rubin of ESPN New York reported (Dec. 2)

Leathersich is now free to sign with any club.

The Cubs had claimed Leathersich off waivers from the Mets on Nov. 19.

Tags: Jack Leathersich
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- STEP Camp, for the Mets top prospect began over the weekend. The full roster is here. In the last two years, every starter on a full-season team on Opening Day attended either MLB camp or STEP Camp.

- At ESPNNY, Adam Rubin reports that Erik Goeddel will be transitioning to a bullpen role. This is not a surprise. In fact, when I ranked him as the Mets' 33rd-best prospect, I had already factored in a move to the bullpen into his valuation.

- At Fangraphs, Jeff Sullivan did a great piece about Juan Lagares and how much outfield defense shifts in value year-over-year. He found range rankings are more stable than arm ratings, where Juan Lagares excelled last season.

Tags: Erik Goeddel, Jack Leathersich, Jeff Walters, Rafael Montero, Toby Hyde
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22-year-old lefty reliever Jack Leathersich is on a flight to Las Vegas to join the Triple-A team, according to his Twitter account.

In AA, Leathersich has posted a 1.53 ERA with a 1.193 WHIP, while striking out 55, in only 29 1/3 innings.

Leathersich relies mostly his fastball/curveball combination to get hitters out. His fastball has recently been 93-94 mph and touching 95. That's a tick better than he showed in the SAL last year when he was mostly 91-93. There's deception in the way he short-arms the ball and it hops on hitters. He knows how to elevate the offering to get chases. The key to Leathersich's improvement in AA has been his declining walk rate. In 13 innings in April, he walked 10 batters, a rate of ?16.7%. In May and June, he walked six total batters in 16.1 innings, a rate of 9.4%. I had Leathersich ranked #31 on the pre-season Mets top prospect list as a potential middle-reliever. Note too that Leathersich is not strictly a left-handed specialist as he's actually been more effective against righties than against lefties in the last two years. This year, lefties have hit .367/.441/.533 against him in 34 PA while righties have hit .107/.236/.107 with zero extra-base hits in 90 PA. This continues a trend from last year in a-ball when lefties compiled a .707 OPS against Leathersich compared to .513 for righties. ?

Tags: Jack Leathersich, Andrew Vazzano
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AA: Binghamton Mets 8, Altoona Curve (PIT) 5?

The B-Mets scored four runs in the bottom of the seventh, an inning that began with a Wilfredo Tovar single, to snap a 4-4 tie.

RF Cesar Puello (.296/.382/.513 - 42 gms) reached base four times: he was 1-for-1 with a double, two walks and a HBP. ?He's now up to 12 walks and nine hit-by-pitches this year. That all works out to a BB+HBP rate of 12% of plate appearances, much more palatable than his 7% walk rate, which itself represents major progress.

Tags: Cesar Puello, Jack Leathersich, Toby Hyde
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Reader TheBigStapler asked in response to yesterday's Jack Leathersich writeup:

Has Leathersich demonstrated any dramatic split between left and right-handed opponents? A high K% against left-handers could have him shooting up to the majors.

  

Tags: Analysis, Jack Leathersich, Toby Hyde
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On its face, this trio is a hodgepodge. It is. However, when read as part of a greater group that covers #26-33 it makes more sense as a range where the rankings mix unproven guys with upside like Chris Flexen and Corey Oswalt with more accomplished players like Jack Leathersich and Cam Maron with lower ceilings.

#31 - LHP Jack Leathersich

Born:?7/14/90 (Beverly, MA)

Tags: Cam Maron, Chris Flexen, Jack Leathersich, Top Prospects Series, Toby Hyde
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A+: @?Clearwater Threshers (PHI) 5, St. Lucie Mets 2?

LHP Jack Leathersich gave up the tie-breaking three-run homerun in the bottom of the eighth. His line: 1.1 IP, 3 H, 3 R, 3 ER, 1 BB, 2 K, 1 HR, 1 HBP. Leathersich's ERA rose to 4.46 and his WHIP to 1.43 in 36.1 innings in advanced-A.

 

Tags: Cam Maron, Jack Leathersich, James Fuller, Savannah Sand Gnats, St. Lucie Mets, Toby Hyde
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A+: Tampa Yankees 2, @ St. Lucie Mets 1??(10 innings)

The Mets offense had four hits, all singles in this one.

LHP Chase Huchingson, a non-drafted free agent two years ago, kept the Yankees at bay, but the box score suggests he again struggled to locate: 5 IP, 6 H, 1 R, 1 ER, 3 BB, 4 K, 1 HBP. That's 21 walks in his last 29.1 IP.

Tags: Chase Huchingson, Jack Leathersich, St. Lucie Mets, Toby Hyde
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A+: @ Daytona Cubs 6, St. Lucie Mets 5?

The Cubs scored winning run in the 10th off RHP John Church in the 10th.

Jack Leathersich had a rough introduction to advanced-A: 2.2 IP, 2 H, 2 R, 2 ER, 2 BB, 3 K, 1 HR and he allowed a runner left aboard by Cory Mazzoni. Mazzoni's final line: 5 IP, 5 H, 3 R, 3 ER, 0 BB, 4 K, 1 HR. In nine starts this year, he's fanned 32 and walked 13. I expected more than a 2.5 K/BB and a 6.4 K/9.

Tags: Aderlin Rodriguez, Jack Leathersich, Savannah Sand Gnats, St. Lucie Mets, Toby Hyde
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Jack Leathersich, the Mets' fifth round pick out the University of Lowell in the fifth round has put up some eye-popping numbers in his brief professional carer. In Savannah, in 24 innings, he struck out 37 and walked eight, fanning 40% of the batters to face him while putting up a 0.75 ERA (2 ER/24 IP).

His fastball sits in the low 90s, 91-93 mph on a given night. ?Hitters really do not seem to see it well out of his hand at all as he turns his back to the hitter in his motion. However, he believes that the key to his success has been an improved curveball born out of cleaner more repeatable mechanics.

He earned a promotion to advanced-A St. Lucie just one day after we sat down for this interview.

Tags: Interview, Jack Leathersich, Toby Hyde
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LHP Jack Leathersich, the Mets' fifth round selection in the 2011 draft out of UMass-Lowell,?has been promoted from Savannah to advanced-A St. Lucie.

He was dominant in 12 outings out of the Savannah bullpen with 37 strikeouts against eight walks and five hit batters in 24 innings. He fanned 39% of the batters he faced. Overall, he allowed four runs, only two of which were earned for a 0.75 ERA.

He cleaned up his mechanics a little bit and improved his breaking ball and is clearly more than ready for the Florida State League.

Tags: Jack Leathersich, Transactions, Toby Hyde
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What's the plan for LHP Jack Leathersich?

Mets fans were excited about Leathersich, the team's 5th round draft pick after he struck out 26 of 47 batters in the New York-Penn League in 2011 and a strong career at DII UMass-Lowell.

Now, he's working out of the Savannah bullpen behind the Gnats' six-man rotation.

Tags: Jack Leathersich, Savannah Sand Gnats, Toby Hyde
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SS-A: Tri-City Valley Cats 7, @ Brooklyn Cyclones 4- Game completed from Sunday, due to rain.

? ? ? @ Brooklyn Cyclones 3, Tri-City Valley Cats 2- 8 innings

Amauris Valdez sent home a crowd of 5,814 jumping for joy, as his first home run of the season lifted the Cyclones to a 3-2 victory in walk-off fashion. ?The home run was also the first extra base hit for the seldom used Valdez (18 games).

Tags: Brandon Nimmo, Jack Leathersich, Philip Evans
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SS-A: Game 1: Brooklyn Cyclones 3, @ Batavia Muckdogs 1

? ? ?Game 2: @ Batavia Muckdogs 2, Brooklyn Cyclones 1- 8 innings

In Game 1, the pitching combination of Eduardo Aldama (5 IP, 3 hits, bb, 6 K) and Jack Leathersich (SV(1), 2 IP, 3 hits, 1 er, bb, 5K) limited Batavia to just one run on six hits. ?The two pitchers combined to strikeout 11 while walking only two.

Tags: Daniel Muno, Domingo Tapia, Eduardo Aldama, Jack Leathersich
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SS-A: @ State College Spikes 5, Brooklyn Cyclones 1

The Cyclones could only muster one run on the night, a solo homerun by Travis Taijeron (2-3, HR(4), RBI), his fourth of the season. According to the State College broadcast, "Taijeron's homer was well over 400 ft."

The real story here is the dominance of the Mets 5th round pick LHP Jack Leathersich. Let me preface this by saying small sample size. ?Either way, Leathersich has been, how can I say this clearly, DOMINANT.

Tags: Jack Leathersich, Travis Taijeron
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