The Seattle Mariners' international scouting department has established itself as one of the top units in Major League Baseball, successfully signing significant talent. Among their top 10 prospects, three are international signings—Lazaro Montes, Felnin Celesten, and Michael Arroyo. On January 15, the Mariners added 13 new prospects to their ranks, including two top 20 international players: Venezuelan outfielder Yorger Bautista and Dominican shortstop Kendry Martinez.

Looking ahead, Seattle is poised to make a splash in the 2026 international signing period with the potential addition of outfielder Juan Rijo, ranked among the top 20 prospects for that year. According to scouting expert Joe Doyle, Rijo shares impressive hitting traits with Arroyo, who recently made significant leaps in the Mariners' system, batting .285 with 23 home runs and 89 RBIs across Low-A and High-A.