Of all the issues the Mariners could have faced in 2026, Cal Raleigh’s rough season may have been the loudest warning sign. After four years of leaning on him so heavily, the year made one thing clear: Seattle needs better insurance behind the plate.
That’s why a recent prediction from MLB Trade Rumors turned heads. In its top 50 free agents forecast, Darragh McDonald projected Tyler Stephenson to land in Seattle ahead of the 2027 season, though getting that deal done would not be simple.
The idea makes sense on the offensive side. Stephenson has long been viewed as one of the better-hitting catchers in the game, and his career line - .257 batting average, .757 OPS and 105 wRC+ - would fit in plenty of lineups. This season, he posted strong chase and hard-hit numbers, and he has also handled lefties well, hitting .262 with a .785 OPS and 111 wRC+ since debuting in 2020.
But the fit gets messy fast once the glove enters the conversation.
Stephenson’s defensive reputation is the reason this prediction comes with a catch. He does own a career 20.2% caught-stealing rate, and this season he ranked in the 97th percentile for Blocks Above Avg.
Still, he also allowed more stolen bases than any other catcher this year, with 94. MLB Trade Rumors also pointed to Statcast data showing him as the game’s worst framer, in the aggregate, since the start of the 2024 campaign.
Then there’s the price tag. McDonald projected Stephenson at two years and $15 million, and that kind of commitment matters for a Mariners team that can’t let a backup catcher solution swallow too much of the budget. Even with Jhonny Pereda drawing a solid bat when given the chance this year, he isn’t seen as the clean answer to carry the backup role going forward.
There are other names that may be more appealing on the market, too. Gary Sánchez stands out as one alternative, especially after the World Series champion Brewers declined his one-year, $8.5 million option. Zachary Rymer and Jason Wang have both praised Sánchez, with Wang noting his 112 OPS+ as his best since 2019 and pointing to his 16.7% walk rate, one of the highest in baseball.
The bigger picture is that Seattle may need to save room for a much larger swing. MLB Trade Rumors projected Seiya Suzuki for four years and $105 million, and the Mariners would need to convince him that Seattle is the right landing spot.
For now, the money picture is tight enough to make any catcher upgrade a balancing act. There’s only a $21 million gap between what the Mariners spent in 2026 and what they’re projected to spend in 2027, and a potential salary floor has also been mentioned by Evan Drellich of The Athletic. If the budget gets squeezed, the safer move may be to give Pereda another shot next year, especially with arbitration not arriving until 2029.
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What makes the decision trickier is that it is not just about plugging one hole, but about how the infield is going to be arranged around it. The Mariners are trying to balance power, glove work and long-term roster development all at once, and the ripple effects could extend beyond third base as they sort through the next phase of their lineup construction. [Read more 🡒]
Cole Youngs Rise Could Complicate One Intriguing Mariners Fit
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Cole Youngs rise only adds another layer to that discussion, because every internal step forward changes how aggressively the Mariners can shop outside the organization. Brendan Donovan, Teruaki Sato and Luis Arrez have also surfaced in the broader planning conversation, but nothing has been decided yet, which leaves Seattle weighing fit, cost and flexibility before the market really settles in. [Read more 🡒]