Mariners’ Tuesday Bombshells: Rotating Piggyback, Pereda Sent Down, Arozarena to IL

Tuesday ended in a solid 3-1 win for the Mariners at home against the Orioles, but a flurry of roster moves and decisions may have been even more hectic for the team than that night’s action. The team called Cal Raleigh back up to the MLB roster, announced a first-of-its-kind rotating piggyback, and had to call up a guy who had taken four total plate appearances above High-A ball in his entire career thanks to a seemingly bizarre lack of preparation on Randy Arozarena’s injury status.

Mariners general manager Justin Hollander, speaking with media Tuesday afternoon, noted the inordinate severity of the injury situation as compared to other bugs he had dealt with in his tenure with the team; he noted that Luke Raley and Josh Naylor were both dealing with issues and that Matt Brash, Carlos Vargas, and Cooper Criswell would be out until around the trade deadline. Brendan Donovan is set to start running work in the week, but these persistent injuries are not a good sign. This is especially true of Raley’s lower back tightness, given that similar injuries ended up shattering his 2025 season well after he was officially healed.

The mechanistic plan to have each of Seattle’s six starting pitchers rotate the piggyback amongst themselves is many things, but to use a judgmentally neutral term, it is unprecedented. It is also seemingly contradictory that the same organization that came up with a plan as intricate as a rotating piggyback also waited until a gameday to MRI Arozarena despite having a rest day to do so; had they done the simple thing of scheduling an earlier MRI, they would have been able to call Connor Joe back up as is clearly their long-term plan.

But what’s done is done, as bizarre as the events were. What should be made of these decisions, and what do they mean for the near future of the Mariners’ season?