After a rocky start to the season, the Seattle Mariners have found some bright spots—and none shined brighter early on than reliever Matt Brash. The 28-year-old right-hander was absolutely dealing out of the bullpen, posting a pristine 0.00 ERA over 11.1 innings across 14 appearances. Yes, you read that right: zero earned runs.

But just as Brash was heating up, the Mariners were forced to cool him down. Inflammation in his right lat landed him on the 15-day injured list at the beginning of May, leaving Seattle without one of its most reliable arms in high-leverage situations. For a team trying to find its footing, losing a bullpen ace like Brash was a tough blow.

Now, there's finally some good news on the horizon. According to MLB.com's Daniel Kramer, Brash is set to begin a rehab assignment with the Triple-A Tacoma Rainiers on Thursday night. It's a crucial first step in his journey back to the mound—and one that Mariners fans have been eagerly awaiting.

This will mark Brash's first appearance in the minors this season, though he's no stranger to Tacoma. Last year, he made six appearances for the Rainiers, posting an 8.44 ERA. But given his dominant start to 2026, there's plenty of reason to believe he'll look more like the guy who was unhittable in Seattle than the one who struggled in Tacoma.

The Rainiers are scheduled to face the Sugar Land Space Cowboys on Thursday night, with first pitch set for 7:05 p.m. PDT. If all goes well, Brash could be back in a Mariners uniform sooner rather than later—and that's a sight for sore eyes in the Pacific Northwest.