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Seattle Mariners 60-Man Roster Prospect Analysis

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Austin Adams
Dan Altavilla
Gerson Bautista
Isaiah Campbell
Nestor Cortes
Sam Delaplane
Justin Dunn
Carl Edwards Jr.
Aaron Fletcher
Joey Gerber
Logan Gilbert
Marco Gonzales
Zac Grotz
Taylor Guilbeau
Yoshihisa Hirano
Yusei Kikuchi
George Kirby
Matt Magill
Nick Margevicius
Ljay Newsome
Yohan Ramirez
Justus Sheffield
Erik Swanson
Juan Then
Taijuan Walker
Art Warren
Taylor Williams
Joe Hudson
Tom Murphy
Austin Nola
Brian O'Keefe
Cal Raleigh
J.P. Crawford
Dee Gordon
Sam Haggerty
Tyler Keenan
Shed Long
Tim Lopes
Jose Marmolejos
Noelvi Marte
Dylan Moore
Kaden Polcovich
Austin Shenton
Kyle Seager
Dan Vogelbach
Donnie Walton
Evan White
Patrick Wisdom
Braden Bishop
Zach DeLoach
Jake Fraley
Jarred Kelenic
Kyle Lewis
Julio Rodriguez
Mallex Smith


The Mariners are bringing four 2020 draftees to summer camp: first-round RHP Emerson Hancock, second-round OF Zach DeLoach, third-round INF Kaden Polcovich and fourth-round 3B Tyler Keenan. The players in that group will get an immediate jump on their development despite a highly unusual set of circumstances.

Beyond those two, the Mariners are also bringing their top 15 prospects entering the season. That group is headed by dynamic outfield duo Julio Rodriguez and Jarred Kelenic. SS Noelvi Marte entered the season among the Top 100 prospects despite having only played in the Dominican Summer League, and in a normal year could have burst onto the national scene.


It's slightly surprising to see righthander Sam Carlson, who needs innings after not having pitched since 2017, not make the roster. The same goes for intriguing righthander Penn Murfee, who put up excellent numbers in a breakout 2019 season and pitched for Team USA in Olympic qualifying.


This is one of the most prospect-heavy groups of any 60-man player pool. Beyond Kelenic, Rodriguez and the draftees, righthanded starters Brandon Williamson and Isaiah Campbell, as well as relievers Aaron Fletcher and Sam Delaplane could be intriguing options for the Mariners at some point this season. On the whole, though, this player pool was put together with the future in mind, keeping in line with the Mariners current rebuilding strategy.

Marco Luciano Zachlucyfourseam

Top 15 Teenage MLB Prospects In Summer Camp

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