2nd blown save this week — Closer Monkey flags him as overworked. The Mariners may rest him for a game or two; Jose A. Ferrer is the next-up. Hold but monitor the next 2 outings; if he settles, the role is fine.

ACTIVATED: Mariners activated Brash from the 15-day IL Tuesday. He's been out since March with a hamstring issue. His pre-injury upside (top-10 RP material in 2024) is intact; he'll work setup behind Andrés Muñoz initially but is the next-up if Muñoz slips. Hold in deep leagues; speculative add.

Started vs Chicago White Sox (0W-0L, 3.38 ERA)

Emerson's first MLB HR (3-run blast in Mon's 6-1 win) is the kind of validation moment that gets a prospect's ownership moving fast. 20 years old, top-15 overall prospect, locked into the SS spot with Donovan on the IL. Top-25 SS rest of season ceiling. Claim aggressively before ownership doubles.

NEW: 10-day IL retroactive to May 16 with left groin muscle strain. Donovan had been the Mariners' everyday 3B. Colt Emerson promoted from AAA in his place — a major prospect callup that creates fantasy ripples. Groin strains in everyday players typically run 3-4 weeks.

Started vs Chicago White Sox (3W-2L, 3.91 ERA)

Emerson made his MLB debut Sunday filling the SS spot with Brendan Donovan on the IL (groin). FanGraphs projects 18 HR / 25 SB / .350 OBP as his MLB-average outcome. The runway is locked through at least June. Top-25 SS rest of season ceiling if the call sticks.

NEW: 10-day IL with right oblique strain — first IL stint of his career. The injury surfaced May 2 (he missed 3 games) and was aggravated in Wednesday's loss. He'll undergo evaluation back in Seattle. Oblique strains in catchers typically take 4-6 weeks minimum. Jhonny Pereda recalled.

NEW: Removed from Wednesday's game in the 8th inning grabbing at his right side. Second flare-up in two weeks (missed three games earlier this month). Manager Wilson called it 'precautionary' but an IL stint is likely after Thursday's reassessment. Oblique injuries in catchers typically mean 4-6 weeks minimum.

8 saves but a 5.63 ERA — the surface ERA hides good underlying stuff (78.6% strike rate in his last outing, improved pitch mix). The role is locked. Top-20 RP rest of season.

Started @ Houston Astros (0W-0L, -.-- ERA)

Started @ Houston Astros (2W-2L, 4.02 ERA)

Miller is back from oblique and gets his 2026 debut Wednesday vs. Houston. The Mariners are running a six-man rotation initially with a possible Castillo piggyback later. Workload will be limited early but Miller's stuff is top-30 SP-quality. Speculative add now while he's still under 25% rostered; he won't be after his first start.

OBP 0.276 → .339 (Δ +0.063)

OBP 0.276 → .339 (Δ +0.063)

Started vs Atlanta Braves (1W-2L, 4.61 ERA)

OBP 0.276 → .339 (Δ +0.063)

OBP 0.259 → .340 (Δ +0.081)

OBP 0.261 → .347 (Δ +0.086)

OBP 0.261 → .347 (Δ +0.086)

NEW: 10-day IL retroactive to April 30 with a left thumb fracture. Thumb fractures in hitters typically take 4-6 weeks. Jhonny Pereda recalled to take the C/depth spot; Wilson wasn't a fantasy starter, but his absence further stretches Seattle's banged-up infield.

NEW: 15-day IL retroactive to April 30 with right lat inflammation. A setback for Brash, who had been working back into a high-leverage role behind Andrés Muñoz. Josh Simpson recalled to take the roster spot.

OBP 0.263 → .356 (Δ +0.093)

Started vs Kansas City Royals (1W-2L, 3.86 ERA)

OBP 0.263 → .341 (Δ +0.078)