Luis Castillo traded to Mariners by Reds for 4 prospects
Cincinnati Reds trade Luis Castillo to the Seattle Mariners for prospects - Redleg Nation
Reds trade Luis Castillo to Mariners, add 4 well-regarded prospects - The Athletic
Seattle Mariners trade for Luis Castillo
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Reds acquire 4 prospects from Mariners for Luis Castillo
Luis Castillo 'ready to go' for first start with the Mariners, Mariners
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SEATTLE MARINERS: Seattle trades for Reds pitcher Luis Castillo
Luis Castillo Traded to Mariners, What's Next For Dodgers! Ohtani, Soto?
Mariners acquire Reds All-Star pitcher Luis Castillo in trade - Los Angeles Times