The Chiba Lotte Marines of Nippon Professional Baseball signed Castillo to a contract Monday, the pitcher’s agency, OL Baseball Group, reports.
Castillo bounced around to four different teams in 2025, collected a 3.94 ERA and 30:14 K:BB over 32 innings between the Diamondbacks, Mets, Mariners and Orioles. The left-handed reliever will now try his luck overseas in 2026.
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