4 Mariners players facing their last stand as trade deadline approaches

The Seattle Mariners are barrelling towards the trade deadline with multiple needs to fill, and it seems likely that trades will be coming in the next week.

While the possibility of bringing new talent to Seattle is enticing, it does mean that some players might soon be on the outside of the roster looking in.

4 Mariners facing their last stand on the roster

1. Dylan Moore

Just two months ago, we were talking about Dylan Moore as one of the best utility men in baseball. He led AL second basemen in bWAR in late May and was even mentioned as a dark-horse All-Star candidate.

Then May 28th arrived, and since then, Moore has been arguably the worst player in baseball. He has just two hits since then, a single on June 18th and a home run on July 4th. In his last 54 plate appearances, Moore is slashing .039/.093/.098, for a .191 OPS. It will be bittersweet to see the Mariners' longest tenured player go, but at this point, time has run out for Moore.

2. Donovan Solano

After beginning the season in one of the worst slumps of his career, Solano went on a heater in late May and early June, raising his OPS to as high as .672 on June 27th, making him almost a league-average hitter.

Since then, he's fallen back into a slump. He has just five hits in his last 15 games, with a slash line of .161/.250/.226. On the season, he's been worth 0.0 bWAR and has an 85 OPS+. Seattle would be wise to upgrade their lineup against left-handed pitching, and finding a replacement for Solano would be ideal.

3. Ben Williamson

Williamson might still have a future with the Mariners, especially if he can learn to play other positions across the infield. His defense gives him value, as the 24-year-old does have 1.4 bWAR to his name in 2025.

With that being said, Williamson is probably best suited to finish the year in Triple-A Tacoma. He is rocking a .618 OPS (82 OPS+), which just is not good enough to justify playing him every day. Seattle is rumored to be targeting Eugenio Suárez at the deadline, and if they can bring him back to Seattle, Williamson is probably the odd man out.

4. Trent Thornton

Thornton, to his credit, has bounced back after some rocky outings in early June. On June 10th, his ERA had climbed to 7.71, and it felt like he was sure to be sent down soon. Since then, he's thrown 19 innings over his last 13 appearances and allowed just six runs for an ERA of 2.84. He's lowered his season ERA back to 5.12.

Still, Thornton is probably the weakest arm in the bullpen. If the Mariners add to their pen at the deadline, as they have done in recent years, it feels very likely that Thornton would be the odd man out.