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Seattle Mariners Top 20 Prospects

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Adam Jones (photo courtesy of Dave Sanford)


  1. Jeff Clement, C, Grade A-
  2. Adam Jones, OF-SS, Grade B+
  3. Asdrubal Cabrera, SS, B
  4. Clint Nageotte, RHP, C+
  5. Chris Snelling, OF, C+ (grade change from book)
  6. Matt Tuiasosopo, SS, C+
  7. Shin-Soo Choo, OF, C+
  8. Yorman Bazardo, RHP, C+
  9. Bobby Livingston, LHP, C+ (grade change from book)
  10. Wladimir Balentien, OF, C+
  11. Ryan Feierabend, LHP, C+
  12. Luis Valbuena, 2B, C+
  13. Michael Saunders, OF, C+
  14. Michael Wilson, OF, C+
  15. Sebastian Boucher, OF, C+
  16. Osvaldo Navarro, SS, C+
  17. Edgar Guaramato, RHP, C+
  18. Cesar Jimenez, LHP, C
  19. Anthony Vavaro, RHP, C
  20. Craig James, RHP, C
A difficult system to get a handle on. Clement and Jones are the obvious top guys, but after that things become unclear.

Chris Snelling is a very good hitter, but he's also good at getting hurt. I gave him a Grade C in the book, but will increase that to C+. He's a Grade B guy on his own merits, but because of his health record I think we have to be careful.

Clint Nageotte has that killer slider, but control problems remain an issue.

The guys after him all have a mixture of strengths and weaknesses. Livingston has outstanding command but his stuff is only marginal. Bazardo has a good arm but his component ratios have never been impressive. Balentien has plus power but will face a difficult transition against Double-A pitching.

One guy I didn't put in the book that I should have is Emiliano Fruto. He throws quite hard but his track record is erratic; he could slot into the bullpen sometime this year. I'd see him as a Grade C+ type.

As for Kenji Johjima, your guess is as good as mine. He turns 30 this year and I don't really count him as a "prospect" given his experience in Japan.