The Seattle Mariners roster is full of unknowns with spring training just over a month away. The front office has done little to address the team’s biggest positional needs (outfield and pitching) and the fact that it has an interesting blend of youth and experience.

There are several intriguing position battles and storylines to watch for this spring. What will the outfield depth chart look like? Who will be in the starting rotation? Who will be starting at catcher? Those questions and more are addressed in the following slides, as I broke down key position battles and discussed players who need to make a case to earn a roster spot on Opening Day.


*All stats and info were obtained via, and

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