Who is the Seattle Mariners Second Baseman in 2021?

Seattle Mariners Option No. 3 – A free agent addition

The offseason is not over, and that truly means a lot in the conversation of who will claim the second base role. Considering Jerry Dipoto’s habits, there is certainly still a chance that he brings in a free agent to fill the need.

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All of the targets that I had listed in my prior piece currently are unsigned, but one of them really sticks out to me. César Hernández is still available, and a move to acquire him would make sense for the Mariners in 2021.

He is not a guy who would command a multi-year deal, and he had a similar year offensively to Dylan Moore in 2020, actually hitting for a higher average and more extra-base hits. This addition would allow Moore to play much more outfield, where he was considerably better defensively and would give the M’s an infield complete with a Gold Glove Award winner at every position (excluding catcher and pitcher).

If a free agent is brought in, it could easily be another second baseman other than Hernández. Hernández could also sign elsewhere. Regardless, it is very possible the Mariners bring in an unemployed second baseman.

But if I were a betting man, my money would be on Dylan Moore starting the season at second base and building off of a surprising 2020 season, as he seems the most likely option to claim the role at this point.