Seattle Mariners make big splash, acquire right-hander Luis Castillo from Cincinnati Reds
Reds trade ace Luis Castillo to Seattle Mariners
MLB trade deadline: Mariners went all in on Luis Castillo to try to end their playoff drought. Your move, Phillies.
Luis Castillo Deal Shouldn't Affect View of Mariners System
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Mariners acquire 'dominant' starter Luis Castillo from Reds