Mariners right-hander Bryce Miller will head out on a rehab assignment this weekend. The 27-year-old is working his way back from an oblique injury. He’ll start for Triple-A Tacoma on Saturday, general manager Justin Hollander told reporters, including Daniel Kramer of MLB.com.
Miller fell behind the other starters during the spring after experiencing tightness in his side. The issue ultimately landed him on the injured list to open the season. The righty is coming off an injury-plagued 2025 campaign. He went down with elbow inflammation midway through May. Miller initially returned from the injury at the end of May. He was hammered for eight earned runs over nine innings and went back on the IL with the same injury.
The elbow injury didn’t stop Miller from contributing in the postseason. Despite an ineffective eight starts to close the regular season, he delivered three strong outings in the playoffs. Miller held the Tigers to two earned runs in his lone ALDS appearance, then notched a pair of one-run outings against the Blue Jays in the ALCS. He earned the win in Game 1 of the series with a quality start against Toronto.
Miller is expected to need the full 30 days allotted for the rehab assignment, per Ryan Divish of the Seattle Times. The plan is for him to throw two innings or 30 pitches with the Rainiers tomorrow. Now that Miller has a definitive timeline, questions will arise about who he’ll replace in the starting rotation. Right-hander Emerson Hancock slotted into Miller’s spot to open the season. He’s been phenomenal, posting a 2.28 ERA with a 25:4 strikeout-to-walk ratio.
“If we get a month from now, and that’s what happens, we’ll figure it out,” Hollander said when asked about potentially having six pitchers for five rotation spots. “We haven’t made any decisions on that whatsoever.”
Hancock has had shots in the past, as the Mariners have dealt with injuries to Miller, George Kirby, and Logan Gilbert. It’s never gone nearly this well. The 26-year-old had an ERA in the mid to high-4.00s in each of his first three big-league seasons. His “best” strikeout rate heading into this year was his 16.6% mark in 2025. That number sits at 29.4% through four starts this season. Hancock has made significant arsenal changes, prioritizing his four-seamer over his sinker and throwing his sweeper 27.4% of the time, up from 3.2% in 2025. His Stuff+ is up to 107. He’d topped out at a 91 Stuff+ in his three previous seasons.
Photo courtesy of Rick Scuteri, Imagn Images
