Mariners Hope Bryce Miller Can Rebound After Injury Setback

The Seattle Mariners are counting on Bryce Miller to reclaim his role as a frontline starter in 2026, but injuries have once again complicated those plans. After being diagnosed with oblique inflammation, Miller completed a bullpen session on Sunday, marking a significant step forward in his rehabilitation, according to Shannon Drayer of Seattle Sports.

During the session, Miller threw at roughly 80 percent intensity for 10 minutes and reported no discomfort. The pitcher emphasized that the focus was on limiting stress while gradually ramping up, saying, “Everything felt good… I want to obviously throw more and like a normal bullpen and throw harder… but make sure we do it the smart way.” His encouraging feedback suggests that the Mariners’ cautious approach is paying off.

Assuming no setbacks from Sunday’s bullpen, Miller is expected to progress to a full session of 25-30 pitches at higher intensity later this week. The Mariners will use that session to determine the next steps, carefully monitoring his workload to avoid re-injury.

Miller’s health is particularly crucial given his inconsistent 2025 season. Limited to just 18 starts due to elbow issues, he posted a 5.68 ERA with a 74/34 strikeout-to-walk ratio, though he showed flashes of his potential in the ALCS with a 1.80 ERA over limited innings. Returning to his 2024 form is the key to bolstering Seattle’s postseason prospects.

1. Progress in Recovery

Miller’s bullpen session on Sunday was a vital benchmark in his rehabilitation. Throwing at 80 percent intensity for 10 minutes allowed him to test the injured oblique in a controlled environment while minimizing risk. The right-hander emphasized the importance of measured progress. By keeping the session limited and gradually increasing intensity, Miller is working to rebuild strength and endurance without exacerbating the injury. His comments reflected a focus on long-term health rather than rushing back to game speed. The Mariners’ medical and coaching staff are monitoring Miller closely, ensuring that each step in his recovery is deliberate. Progress like Sunday’s session is encouraging, as it indicates both physical readiness and confidence in the mound mechanics that had previously caused concern. If all goes as planned, Miller’s next session—expected to be a full bullpen with higher pitch count—will provide critical data for determining when he can return to live games. Patience is key, but each milestone builds optimism for Seattle’s rotation.

2. Looking Back at 2025

Miller’s 2025 season was marked by inconsistency due to elbow injuries. Limited to just 18 starts, he struggled to find rhythm, posting a 5.68 ERA and a 74/34 K/BB ratio, raising questions about his durability and long-term potential. Despite struggles during the regular season, Miller delivered flashes of brilliance in the postseason. In the ALCS, he recorded a 1.80 ERA, showing the strikeout ability and composure reminiscent of his peak performances. Though his 7/5 K/BB ratio was elevated, it reflected a high-pressure environment rather than a decline in talent. His limited 2025 workload underscores why the Mariners are proceeding cautiously. Miller has shown he can dominate when healthy, but previous injuries highlight the importance of a measured approach to prevent setbacks. The contrast between Miller’s ALCS performance and his regular-season struggles demonstrates that his talent ceiling remains high. A return to full health could drastically improve Seattle’s rotation and elevate the team’s overall competitiveness.

3. Returning to 2024 Form

Miller’s 2024 campaign represents the benchmark the Mariners hope he can reach again. Over 31 starts that year, he posted a career-best 2.94 ERA with a 171/45 K/BB ratio, combining durability and elite strikeout ability. A full recovery could restore Seattle’s rotation to its top-tier potential, giving the team a reliable ace capable of anchoring postseason efforts. Miller’s experience and performance under pressure make him a pivotal piece for the Mariners’ long-term outlook. The first priority is incremental progress through bullpen sessions, followed by game action at limited pitch counts. If these steps proceed without issue, a full return could arrive sooner than anticipated, providing a boost to the rotation and increasing Seattle’s World Series odds. Ultimately, Miller’s trajectory in the coming weeks will be a key storyline for the Mariners. His ability to regain form and maintain health will determine whether Seattle can rely on him as a dominant starter once again.