Mariners PR(@MarinersPR):Domínguez has appeared in 42 games with the White Sox this season, recording 12 saves. Smith is ranked as the White Sox' No. 15 prospect according to @MLBPipeline and holds a 1.037 OPS in 78 minor league games this season. Jones has posted an .807 OPS across 90 Triple-A games in 2026.

Mariners PR

@MarinersPR

The official account of the @Mariners Baseball Communications Department. Providing media and fans with updates and statistical information.

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Mariners PR@MarinersPR

2026.08.02 02:54

Domínguez has appeared in 42 games with the White Sox this season, recording 12 saves. Smith is ranked as the White Sox' No. 15 prospect according to @MLBPipeline and holds a 1.037 OPS in 78 minor league games this season. Jones has posted an .807 OPS across 90 Triple-A games in 2026.

Seattle Mariners@Mariners

2026.08.02 02:51

We have acquired RHP Seranthony Domínguez, minor leaguers C Boston Smith and OF Nolan Jones, and cash considerations from the White Sox in exchange for RHP Luis Castillo. #TridentsUp# 🔗