Seattle Mariners 60-Man Roster Prospect Analysis

To see all of Baseball America's player pool analysis, click here. 

(Editor's Note: This post has been updated to include all moves through Aug. 29)

ROSTER

TOP PROSPECTS

The Mariners brought their top 15 prospects entering the season to summer camp. That group was headed by dynamic outfield duo Julio Rodriguez and Jarred Kelenic before Rodriguez broke his wrist during summer camp. 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.

ADDITIONS AND SUBTRACTIONS

The Mariners signed RHP Seth Frankoff, who pitched the last two seasons in Korea, and added him to their pool in early August. 1B Dan Vogelbach was designated for assignment and sent to Toronto for cash considerations.

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