The MLB offseason has started quietly, particularly for the Seattle Mariners, who have seen minimal activity. Key developments include the decline of Jorge Polanco's option and the signing of Adonis Medina to a minor league deal.

As the Juan Soto sweepstakes continues, the focus shifts to Japanese pitcher Roki Sasaki, who is expected to be posted soon. The Los Angeles Dodgers are favorites to sign him, with the San Diego Padres also in contention. The Mariners are reportedly interested, leveraging their history of developing Japanese pitchers.

While Seattle's rotation was strong last season, adding Sasaki could lead to a six-man rotation, enhancing depth and potentially allowing for trades to acquire a top hitter. The timing of Sasaki's posting will be crucial, as it will affect which international signing bonus pool he counts against.