Mariners Calling Up Top Prospect Lazaro Montes, per Report
Seattle is set to call up highly regarded slugger Lazaro Montes to the MLB roster, per Daniel Kramer, with his debut targeted for Tuesday in Boston.

Seattle is calling up top prospect Lazaro Montes, per Daniel Kramer of MLB.com — a move that arrives alongside September roster expansion to 28 players and lands the highly regarded slugger on an MLB roster for the first time.
The timing is straightforward enough: rosters open up, the best bat in the system gets the call. Montes has been described as a big-time slugger, and the Mariners are bringing him to Boston for what is expected to be his MLB debut on Tuesday.
What remains unconfirmed
The report carries a confidence level short of a formal club announcement — no corresponding roster transaction has been described as officially processed in the material. What to watch: whether Seattle confirms the corresponding roster move and how Montes is deployed once he arrives.
The roster backdrop
The callup comes as Seattle has been navigating a crowded injury ledger. Emerson Hancock was placed on the 15-day injured list with a left adductor strain, retroactive to August 29th, a move that reshuffled the pitching side of the roster. The Montes callup addresses a different need entirely, but the two moves together illustrate how quickly a September roster can shift shape.
More on the Mariners wire.

Mariners Set to Call Up Power Prospect Lazaro Montes
The 21-year-old Cuban slugger is en route to Boston and expected to be activated Tuesday, coinciding with the September 28-man roster expansion.

Lazaro Montes Set for MLB Debut with Mariners on Tuesday
Seattle promotes its 56th-ranked prospect to the active roster amid a roster expansion, with an additional 40-man move still needed.

Emerson Hancock on 15-Day IL; Miller Back in Mariners Rotation, Davila Recalled
Seattle placed Hancock on the 15-day IL with a left adductor strain; Miller slides back into the rotation and Davila is recalled from the minors.

Hancock lands on 15-day IL for Seattle
The Mariners have placed RHP Emerson Hancock on the injured list, opening a rotation spot.

Hancock Lands on 15-Day IL With Adductor Strain
Seattle's right-hander Emerson Hancock is sidelined with a left adductor strain, with his IL placement backdated to August 29.

Brandon Walter Gets the Start for Seattle Tomorrow at 10:37 a.m.
The Seattle Mariners announced Brandon Walter as their starting pitcher for tomorrow's 10:37 a.m. game.
