Bold=40-man Roster


Chris Heston, RHP
Chase De Jong, RHP
Dylan Unsworth, RHP
Sam Gaviglio, RHP
Christian Bergman, RHP

Heston and De Jong are next in line after Ariel Miranda and Dillon Overton if the Mariners need help in the starting rotation before Drew Smyly returns.


Paul Fry, LHP
Nick Hagadone, LHP
Dean Kiekhefer, LHP
Mark Lowe, RHP
Tony Zych, RHP
Jean Machi, RHP
Ryan Weber, RHP
Emilio Pagan, RHP

Zych has the best stuff but Machi, Pagan, Hagadone and eventually Lowe could be used to close out games. Zych, barring a setback, is likely to be recalled by Seattle during the first homestand.


Tuffy Gosewich, R/R
Steve Baron, R/R

Gosewich is C3. Baron remains a project but a sound enough defensive option in case of emergency. He hit for average in Tacoma a year ago.


Gordon Beckham, R/R
Mike Freeman, L/R
D.J. Peterson, R/R
Zach Shank, R/R
Tyler Smith, R/R
Dan Vogelbach, L/R

Beckham was the late add but offers experience and versatility. Freeman is capable at 2B and 3B and will hit in the PCL.

Shank tends to be overlooked as a performer — he’s not a big prospect — but he’s a tough out and can carry a starting gig or be used in a utility role. Peterson abd Vogelbach presumably share DH and 1B duties, but expect both to play regularly. Peterson’s prospect status is hangiong on by a very thin threat and Vogelbach’s glove work still needs improvement.

Don’t sleep on Smith. Sound player with plate skills who could fill in at 2B, 3B or SS if injury arises.


Ben Gamel, L/L
Dario Pizzano, L/R
James Ramsey, L/R
Tyler O’Neill, R/R

This is a really nice blend of contact, power, speed and defense. O’Neill is the top prospect here and needs to refine his pitch recignition and plate discipline to unlock his 30-homer potential.

Gamel is the first call-up if the Mariners need help. Ramsey and Pizzano will produce in the PCL; Ramsey can defend, so don’t be surprised if he sees the majors in 2017.

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Jason A. Churchill

Churchill founded Prospect Insider in 2006 and spent several years covering prep, college and pro sports for various newspapers, including The News Tribune and Seattle PI. Jason spent 4 1/2 years at ESPN and two years at CBS Radio. He now serves as the Executive Copy Editor at Data Skrive, a tech company that manipulates data to provide automated content to clients including the AP, BetMGM, USA Today, and ESPN. Find Jason's baseball podcast, Baseball Things, right here.

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