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Seattle Mariners Top 20 prospects for 2017: Mid-season review

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How did the 2017 Mariners prospect list pan out?

New York Yankees v Seattle Mariners
Guillermo Heredia
Photo by Stephen Brashear/Getty Images

We continue our mid-season organization reviews with a look at the Seattle Mariners Top 20 Prospects from the beginning of 2017. The index for other team reviews can be found here.




This list was originally published February 2nd, 2017.

1) Kyle Lewis, OF, Grade B+: Age 22, first round pick in 2016 out of Mercer; coming back from knee injury, hitting .271/.345/.469 in 129 at-bats between rookie ball rehab work and High-A; small sample of course but good power so far.

2) Tyler O’Neill, OF, Grade B+: Age 22, third round pick in 2013 from high school in Canada; hitting .241/.314/.484 in Triple-A with 26 homers, 49 walks, 142 strikeouts in 448 at-bats; traded to St. Louis Cardinals for Marco Gonzales on July 21st; big power is obvious, possible impact player if zone doesn’t get away from him.

3) Nick Neidert, RHP, Grade B-/B: Age 20, second round pick in 2015, 3.45 ERA in 128 innings between High-A and Double-A with 122/22 K/BB; a very good year but went on disabled list Saturday with undisclosed injury.

MLB: Spring Training-Seattle Mariners at Chicago White Sox
Dan Vogelbach
Joe Camporeale-USA TODAY Sports

4) Daniel Vogelbach, 1B, Grade B-/B: Age 24, acquired from Cubs in July 2016 trade; hitting .298/.394/.467 in Triple-A, similar to last year; he’s proven successful against PCL pitching but still waiting for a real shot in the majors.

5) Max Povse, RHP, Grade B-: Age 23, acquired from Braves in November 2016 trade; huge 6-8 right-hander with fastball at 91-95, not a great year statistically with 5.01 ERA in 59 innings between Double-A and Triple-A, 54/21 K/BB, 59 hits; pitched briefly in the majors back in June, should get more of a trial next year.

6) Rob Whalen, RHP, Grade B-: Age 22, acquired from Braves in November 2016 trade; 6.58 ERA in 53 Triple-A innings, 43/20 K/BB; disappointing after much more successful ‘16 season, placed on restricted list July 8th so he could deal with “personal issues.”

Seattle Mariners v Tampa Bay Rays
Mitch Haniger
Photo by Brian Blanco/Getty Images

7) Mitch Haniger, OF, Grade B-: Age 26, first round pick by Brewers back in 2012 from Cal Poly, traded to Arizona in 2014, then on to Seattle in Taijuan Walker deal; hitting .267/.362/.436 in 218 major league at-bats; solid year, may improve further.

8) Andrew Moore, RHP, Grade B-: Age 23, compensation round pick in 2015 from Oregon State; 3.16 ERA in 100 innings between Double-A and Triple-A, 88/19 K/BB; 6.34 ERA in 38 major league innings with 17/5 K/BB; if given enough adjustment time he can be a fine number four starter.

9) Brayan Hernandez, OF, Grade B-/C+: Age 19, switch-hitter from Venezuela signed for $1,850,000 in 2014; hitting .277/.320/.437 in short-season A-ball, traded to Miami Marlins in David Phelps deal; very toolsy, high ceiling.

10) Drew Jackson, SS, Grade C+: Age 24, fifth round pick in 2015 out of Stanford; traded to Los Angeles Dodgers in spring training for Chase De Jong; hitting .250/.363/.416 between High-A and Double-A while fighting injuries; 20 steals; glove needs work but I still find him interesting.

11) Guillermo Heredia, OF, Grade C+: Age 26, Cuban outfielder signed in March, 2016 for $507,000; hitting .280/.343/.389 in 296 major league at-bats; I think there’s more in there.

12) Dan Altavilla, RHP, Grade C+: Age 24, fifth round pick in 2014 out of Mercyhurst; 5.46 ERA in 30 major league innings, 36/14 K/BB; slight control improvements would take him a long way.

13) Dillon Overton, LHP, Grade C+: Age 26, second round pick by Athletics in 2013 from University of Oklahoma, acquired by Mariners on January 26th for minor league catcher Jason Goldstein; claimed on waivers by San Diego Padres in mid-June; 6.80 ERA in 82 innings in Triple-A, 6.65 ERA in 23 major league innings, 11/4 K/BB; may be a Quadruple-A pitcher ultimately.

14) Christopher Torres, SS, Grade C+: Age 19, signed in 2014 from Dominican Republic for $375,000; strong tools, not great performance yet with .226/.327/.380 line in Northwest League; 12 steals; draws walks, has 60-grade speed and gap power but skills erratic.

Seattle Mariners v Oakland Athletics
Ben Gamel
Photo by Ezra Shaw/Getty Images

15) Ben Gamel, OF, Grade C+: Age 25, 10th round pick by Yankees in 2010, traded to Mariners in August 2016; successful rookie season with .295/.348/.418 line in 383 at-bats in the majors; has been overshadowed by hotter MLB rookies but very solid producer.

16) Shae Simmons, RHP, Grade C+: Age 26, originally drafted by Braves in 22nd round in 2012, traded to Mariners on January 11th in Mallex Smith/Luiz Gohara deal; has missed almost entire season with elbow problems.

New York Yankees v Seattle Mariners
Emilio Pagan
Photo by Stephen Brashear/Getty Images

17) Emilio Pagan, RHP, Grade C+: Age 26, 10th round pick in 2013 from Belmont Abbey; good rookie season out of bullpen, 2.65 ERA in 34 innings, 36/6 K/BB, don’t see why this can’t continue.

18) Thyago Vieira, RHP, Grade C+: Age 24, signed out of Brazil in 2010, mid-upper-90s fastball with some reports as high as 102; 3.67 ERA in 49 innings between Double-A and Triple-A, 45/22 K/BB; should get bullpen trial next year.

19) Joe Rizzo, 3B, Grade C+: Age 19, second round pick in 2016 from high school in Virginia; hitting .251/.354/.344 in 375 at-bats in Low-A; Midwest League observers like his approach and see breakthrough potential in 2018.

20) Greifer Andrade, 2B, Grade C+: Age 20, signed out of Venezuela in 2013 for $1,000,000; hitting well in the Northwest League, .316/.327/.462; could use more patience with just five walks in 158 at-bats but has consistently hit for power and average; keep a close eye on him.

Braden Bishop, OF: Hitting .310/.397/.414 betweeen High-A and Double-A, 21 steals, sleeper.
Bryson Brigman, SS: Hitting .239/.309/.303 with 14 steals in Low-A, with reliable glove.
Pablo Lopez, RHP: 4.39 ERA in 131 innings in High-A, 112/17 K/BB; traded to Miami Marlins in David Phelps deal.
Brandon Miller, RHP: 4.40 ERA in 117 innings in Low-A, 107/27 K/BB; traded to Marlins in Phelps deal.
D.J. Peterson, 1B: Hitting 260/.321/.404 in Triple-A; claimed on waivers by Chicago White Sox in early August.
Tony Zych, RHP: 2.66 ERA in 41 major league innings, 35/21 K/BB.

Almost done with the reviews; then it will be time for top 100 revision.