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The Seattle Mariners right-hander was on the mound for Triple-A Tacoma on Saturday as he works back from an oblique issue.

At the major league level, the Seattle Mariners beat the Texas Rangers 7-3 on Saturday afternoon at T-Mobile Park. The win improved the M's to 9-13 on the season and got them their first win over Texas thus far in 2026 (1-4).

The hope is that the win can represent a turning point in an otherwise-disappointing early season.

But there was also some good news down on the farm as M's right-hander Bryce Miller made his first rehab start of the season at Triple-A Tacoma. Miller made one start in spring training before being sidelined with an oblique issue. It wasn't expected to be a big issue, but he aggravated it in a bullpen session later in spring training, setting him further back.

How did the outing go?

Miller threw 33 pitches, surpassing his 30-pitch goal by three, with 21 of them being strikes. Miller gave up four hits and three runs while issuing one walk. He had two strikeouts. As noted by @MiLBMariners, Miller hit 98.7 mph with his fastball.

The account also indicates that Miller left some pitches over the plate, but that his stuff generally looked good.

The fastball velocity is the most encouraging thing, as it indicates he's feeling healthy and strong. His average velocity last season was 94.7 mph.

About Miller

Now 27 years old, Miller is a three-year veteran who made his major league debut in 2023. He's gone 24-21 in total with a 4.01 ERA. The 2025 season was the most frustrating of his career, as he made only 18 regular season starts because of injury, pitching to a 5.68 ERA. He was better in the playoffs, earning a key win for the Mariners in Game 1 of the American League Championship Series against the Toronto Blue Jays.

The questions ahead

When Miller returns, what happens to the starting rotation? Could the Mariners consider a six-man rotation to help keep Emerson Hancock in the fold? Would the M's really send Hancock down to Triple-A despite his excellent start (2-1, 2.28 ERA)? Could Hancock go to the bullpen?

And what is the future for Luis Castillo, who has really struggled through his last three outings?

Seattle Mariners pitcher Bryce Miller (50) throws during a Spring Training workout at Peoria Sports Complex. Matt Kartozian-Imagn ImagesSeattle Mariners pitcher Bryce Miller (50) throws during a Spring Training workout at Peoria Sports Complex. Matt Kartozian-Imagn Images

The timeline

The Mariners don't have to tackle these questions yet, as Miller will likely need multiple more rehab outings, but they are things to think about.

While the Mariners haven't given an official timeline, it seems fair that Miller will need to progress to least 75 pitches before he's ready to return to a major league mound.

Some time in early to mid-May seems appropriate for his return.

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