# Seattle Mariners roster adjustments

> Live situation record from CLSTR: https://clstr.news/situations/seattle-mariners-roster-adjustments
> Updated: 2026-09-04T05:45:35.000Z. Sources: 10. Developments: 2.

The Seattle Mariners have made several roster adjustments to strengthen their lineup and bullpen. Initially, the team called up 21-year-old Cuban outfielder Lázaro Montes to the Major Leagues following a historic minor league season where he broke a 67-year-old record for most home runs in a single season by a Cuban player.

Following this move, the Mariners further bolstered their roster by signing veteran left-handed reliever Hoby Milner, who was previously released by the Chicago Cubs. These changes, intended to address team struggles, resulted in the designation of utilityman Connor Joe and right-hander Nolan Kingham for assignment.

## Timeline

### 2026-09-04: Seattle Mariners bolster roster with Milner and Montes

The Seattle Mariners have signed veteran reliever Hoby Milner and called up top prospect Lazaro Montes to strengthen their roster amid a difficult second half of the season.

3 sources. https://clstr.news/cluster/seattle-mariners-bolster-roster-with-milner-and-montes

### 2026-08-31: Lázaro Montes called up to MLB by Seattle Mariners

The Seattle Mariners have promoted top Cuban prospect Lázaro Montes to the Major Leagues following a record-breaking minor league season featuring 38 home runs.

8 sources. https://clstr.news/cluster/seattle-mariners-to-promote-prospect-lazaro-montes

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Cite as: Seattle Mariners roster adjustments. CLSTR, https://clstr.news/situations/seattle-mariners-roster-adjustments