Miles

Mastrobuoni

The procedural move opens up a spot on Seattle’s 40-man roster. Mastrobuoni has been on the shelf since suffering a calf strain while playing in last month’s World Baseball Classic.

Mastrobuoni wasn’t originally in line to make the Mariners, though he might have gotten a spot with J.P. Crawford down. Instead, he’ll join Crawford on the IL. Mastrobuoni hit .250/.324/.298 in 175 plate appearances over 76 games last season.

No word yet on the severity. However, with Seattle’s season-opener roughly two weeks away it’s possible he’ll require a trip to the injured list. The versatile 30-year-old’s absence could potentially open the door for sizzling-hot former top prospect Brennan Davis to win a spot on the club’s Opening Day roster.

He also doubled. Mastrobuoni took Hayden Birdsong deep to give the Mariners a 5-0 lead in the first inning. It’d be the last run Seattle would score. Mastrobuoni provided versatility off the bench in 2025, but he’s not a lock to make the roster to open 2026.

Woo’s return provides a massive lift for Seattle’s rotation mix for the best-of-seven series against Toronto after missing the ALDS recovering from pectoral inflammation. It’s unclear when he’ll take the ball during the extended series, but Mariners manager Dan Wilson should provide an update at some point prior to Game 1. The 25-year-old ace posted a spectacular 2.94 ERA across a career-high 186 2/3 innings over 30 starts during the regular season. The only other changes for the Mariners involve versatile Miles Mastrobuoni joining their bench mix with Luke Raley and rookie Ben Williamson being left off.

Mastrobuoni returns for Sunday’s regular-season finale against the Dodgers after spending most of the final two months back in the minors. The 29-year-old’s defensive versatility gives him some appeal in a bench role during the playoffs.

Mastrobuoni provides Seattle with some additional bench versatility for Sunday’s matchup in Williamsport, Pennsylvania. He’ll likely head back to Triple-A Tacoma at the conclusion of the contest.

The versatile 29-year-old is getting the boot with Luke Raley returning from the injured list on Friday. Mastrobuoni has hit .248/.323/.289 with just one homer, 12 RBI and six stolen bases in 172 plate appearances with the Mariners this season.

Mastrobuoni returns to Seattle in a bench role prior to Wednesday’s contest against the Rangers. The 29-year-old’s defensive versatility makes him the ideal candidate to occupy the final spot on Seattle’s bench as they head into the final two months.

It looks to be nothing more than a routine night off for the 24-year-old infielder. Williamson has hit an uninspiring .257/.293/.322 with just one homer, 15 RBI, two stolen bases and a 59/11 K/BB ratio over 243 plate appearances for the Mariners this season. Miles Mastrobuoni will start in his place at the hot corner and bat ninth for the Mariners against Yankees’ right-hander Marcus Stroman on Thursday.