Ben Williamson is heading to the World Series with Tampa Bay, and the Mariners are left staring at the cost of a trade they made to push themselves toward October.
Tampa Bay sealed the American League pennant with a 7-3 win over Cleveland in Game 6, while Seattle’s season ended without a playoff berth. That leaves Mariners fans watching a player the team moved in its biggest offseason lineup deal last year prepare for the stage Seattle still hasn’t reached.
The Mariners landed Brendan Donovan in the February three-team trade that sent Williamson to Tampa Bay. The goal was clear: strengthen the lineup and bring in a proven hitter for a contender. That kind of move fits exactly what fans had been asking for, and those demands aren’t going away.
But once a front office makes an aggressive deal, the consequences don’t stop at the announcement. Seattle had to turn that investment into a better team and keep building from there. Instead, Williamson is the one now getting ready for championship celebration.
He did his part for Tampa Bay with the kind of work that matters in October. In ALCS Game 5, Williamson helped anchor the Rays’ strong middle-infield defense.
That tracks with who he’s been: steady, useful, and the kind of player good teams can find a place for. His game looked made for the Rays from the start.
Across the regular season, Williamson hit .238/.302/.318 with three home runs, 26 RBI and eight steals in 88 games. Seattle got a glimpse of that upside on July 11, when he went 4-for-4 with an RBI double, a stolen base and a run scored in Tampa Bay’s 6-1 win over the Mariners.
In the ALCS, he was 1-for-8 with two walks and two runs scored over five postseason games. That’s not star-level production, but it doesn’t have to be. The Rays found value in what he does away from the box score, and that was enough to carry him into the World Series.
Seattle’s side of the deal has been messier. Donovan appeared in only 39 games in 2026 while dealing with groin injuries and a concussion.
Those were real setbacks, and the hope now is that he gets plenty of time to recover this offseason and comes back healthy for 2027. Still, injuries are exactly why depth matters, and why a club built around postseason expectations needs enough support pieces to survive one of its key additions going down.
Williamson was also part of the three-team deal that cost Seattle two former first-round picks, Tai Peete and Jurrangelo Cijntje. Even so, keeping Williamson alone wouldn’t have been enough to duplicate what Tampa Bay just did in 2026.
That’s the part Mariners fans can’t shake: the promise of a move is one thing, but the result is what sticks. Seattle wanted a better roster and a real shot at a pennant. Instead, the early exit belongs to them, while Williamson gets to keep playing.
He was part of the price the Mariners paid to try to get there. Now he gets to chase a title, and Seattle is left looking at another offseason.
The Mariners can still make bold moves. They should. But they also have to finish the job those moves are supposed to start.
Williamson’s run is worth celebrating. Seattle just needs to build its own.
In Other News...
Mariners Face A Tough Trade Call On A Much-Needed Defensive Fix
The Mariners are once again looking at a familiar trade-market question: how much should they be willing to pay for a player who could solve a glaring need on the roster? According to a report from Robert Murray at FanSided, Steven Kwan is expected to be available after Clevelands ALCS exit, and the appeal is obvious for Seattle. He is a four-time Gold Glove winner with a reputation for elite outfield defense and steady production at the plate, the kind of player who can raise both the floor and the ceiling of a club trying to tighten up its run prevention.
The hesitation is just as real, because this would not be a simple rental-style add for a contender. Kwan is entering the final year of arbitration before reaching free agency, which gives any acquiring team a relatively short window to maximize the return. For the Mariners, the bigger question is whether the price in prospects and long-term flexibility would be worth it for a player who fits so neatly on paper, even if the fit comes with real cost. [Read more 🡒]
Mariners Fans Will Have Mixed Feelings About Mitch Garvers Next Step
Mitch Garvers time in the majors is over after a 10-year run that included stops with the Twins, Rangers and Mariners, with his most recent seasons coming in Seattle. The veteran catcher said he is retiring and moving on to focus on family and golf, closing the book on a career that gave the Mariners a steady, experienced presence behind the plate and in the clubhouse.
Garvers decision will land differently for Seattle fans because he arrived as a known commodity from earlier stops and spent his final stretch in a Mariners uniform. His retirement leaves one more familiar name off the roster, and while the next chapter is now personal rather than professional, the reaction from Mariners followers figures to be split between appreciation for what he brought and regret that his career ends here. [Read more 🡒]
Why Mariners Fans Actually Have A Rooting Interest In This World Series
The World Series that opens in Milwaukee carries a little extra interest for Seattle fans, even with neither club wearing Mariners colors. The matchup between the Brewers and Rays includes several players with Northwest connections, starting with Tampa Bay pitcher Drew Rasmussen, whose path has long made him familiar to local followers, and extending to Brewers first baseman and outfielder Jake Bauers, whose name still rings a bell around these parts.
There is also a deeper Seattle angle tucked inside the series, with Milwaukees baseball roots tracing back to the old Seattle Pilots. Add in Rays reliever Cam Booser and Brewers second baseman Brice Turang, both of whom have drawn attention for their recent work, and this becomes more than just a neutral Fall Classic for Mariners fans. The unresolved question is whether that Seattle thread can run all the way through October, or stop just short of something the city has never seen before. [Read more 🡒]