Who is the Seattle Mariners Second Baseman in 2021?

Who will be the Seattle Mariners starting second baseman on opening day?

Second base was a position of need for the Seattle Mariners heading into the offseason. Although they have not brought in any offseason acquisitions to fill that need, there is still more than enough time for the club to make an addition.

Given the position the organization is currently in, it is also very possible that the M’s feel that the hole can be filled in-house. In a recent appearance with the press, the Seattle Mariners sixth-year manager Scott Servais commented on the second base situation heading into the spring;

"“They’ll both get chances in spring training to play a bunch and we’ll just have to wait and see how it plays out. But Dylan has earned the right to get more regular time at second base.”"

Although his defensive prowess in the outfield will likely spot him a handful of starts in the corner outfield positions, Dylan Moore appears to be the frontrunner for the spot as of now. As the days without a free-agent addition go by, it appears more and more likely that the second base spot is Moore’s to lose.

But knowing the aggressive tendencies of GM Jerry Dipoto, I would absolutely not put it past him to make a free-agent addition to sure-up the middle infield.

Also with the news of Shed Long Jr. recovering from his right shin, it is possible that he sees a bounce-back season.

So, here is an analysis of those three possibilities for the Seattle Mariners at second base in 2021.