MLB Rumors: Mariners Working on Another Addition


The Seattle Mariners didn’t get their Eugenio Suarez reunion, but they’re not done either. 

After Suarez chose the Cincinnati Reds on a one-year, $15 million deal, Jerry Dipoto basically told fans to keep their heads up, because the Mariners are still pushing hard on one more move to lengthen the lineup.

Mariners another addition could be a bat

Dipoto said the club has been grinding for days to bring in another player, and Justin Hollander echoed that a hitter addition is certainly possible soon. 

Seattle already expects a full season of Josh Naylor in the middle of the order, and they’re betting on growth from their young infielders too, even after some light rookie turbulence. 

Cole Young hit .211/.302/.305 in his first 257 plate appearances at 22, and Ben Williamson held his own defensively at third base while posting a .253/.294/.310 line over 295 plate appearances. The front office seems to like the foundation, but they clearly want one more proven bat to steady the floor.

Mariners Brendan Donovan remains the name to watch

If there’s a single target that keeps circling back, it’s St. Louis Cardinals infielder Brendan Donovan. 

The left-handed hitter has been tied to Seattle for more than a year for a reason: he can move around second, third, and the outfield corners, he rarely strikes out, and he’s a career .282/.361/.411 hitter. 

Donovan was also an All-Star in 2025, when he hit .287 with 10 home runs, a .353 on-base percentage, and a 119 OPS+, which is exactly the kind of high-contact production Seattle has been trying to add. The hangup sounds like the usual staring contest over which prospects go back, but if the Mariners are truly lining up one more addition, this still feels like the best fit out of anything else still out there.

Projections have the Mariners around $157 million for Opening Day, flirting with the franchise’s past high, and that's good news for a club that just made a deep playoff run and is acting like it wants to stay in win-now mode. 

Photo Credit: David Frerker-Imagn Images