Trent Grisham makes sense for the Mariners in one important way: he’d give them a steady outfielder and real cover behind Julio Rodríguez in center field. But if Bleacher Report is right about Seattle landing him, the bigger question is simple - how does a lineup this left-handed actually function?
That was the glaring takeaway from Joel Reuter’s way-too-early Opening Day projection. He slotted Grisham in left field, Rodríguez in center and Dominic Canzone in right, with Brendan Donovan, Josh Naylor, Lazaro Montes, Cole Young and Colt Emerson also in the mix.
Count it up and Grisham would be one of seven left-handed hitters in the starting nine. Cal Raleigh is the switch-hitter, which leaves Rodríguez as the only pure right-handed bat.
That is not the kind of balance the Mariners should be aiming for. It’s practically an invitation for opponents to lean on left-handed pitching and attack Seattle’s order the same way over and over again.
Grisham is no slouch. He has some pop, even if half of last season came in Yankee Stadium, and he finished with a .211/.308/.395 slash line and a 95 OPS+.
He also brings two Gold Gloves, and his center-field ability would give Seattle some insurance if Rodríguez needs a day off or lands on the IL. Still, he is not the piece that solves this lineup.
Seattle’s issues against left-handed pitching got bad enough in 2026 that the front office went out and got Taylor Ward at the trade deadline specifically to help on that front. At the time, the Mariners were carrying a .649 OPS against lefties, the second-worst mark in baseball.
Ward came in with an .839 OPS against them, but the move never paid off. He was terrible, and it looks unlikely he’ll be back in 2027.
Randy Arozarena is probably gone as well, which means Seattle could lose two established right-handed bats and replace them with another left-handed hitter in Grisham. That’s why the fit feels so strange. Grisham may have been tossed into the projection as a useful add-on, but as a standalone answer, it doesn’t work.
A lineup like this would hand opposing managers an easy script: bring in a tough lefty reliever and let him work through big chunks of the order. Donovan, Canzone, Naylor, Montes, Grisham, Young and Emerson would all be sitting in that same vulnerable lane. Raleigh can switch-hit, but one switch-hitter does not fix that kind of imbalance.
It would also put even more on Rodríguez, and he already carries enough. In this setup, he’d be the lone everyday right-handed counterpunch in a group heavy on young hitters and lefties. That’s too much to ask of one player, even one with franchise-player status.
The Mariners should have learned by now that a pile of individually useful pieces does not automatically make a complete offense. Fit matters.
Redundancy matters too. And this would be a lot of the latter.
Grisham could still make sense if Seattle pairs him with a real right-handed threat elsewhere in the lineup. As a replacement for Arozarena and Ward, though, he would only push the Mariners deeper into the same problem they spent part of 2026 trying to solve.
Bleacher Report may wind up being right about Grisham ending up in Seattle. He looks like the kind of defensively sound, versatile outfielder this front office would like. But if that’s the move, the Mariners still need a major right-handed answer somewhere else.
If Arozarena and Ward are both gone, Michael Arroyo cannot be the only solution to the club’s right-handed shortage. Seattle needs an established threat on that side of the plate. Another lefty, with Rodríguez left to shoulder the load, would be bad roster building.
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