Luis Castillo dealt to Mariners by Reds for 4 prospects - NBC Sports
Mariners Reportedly Acquiring Luis Castillo from the Reds for a Huge Package (UPDATE) - Bleacher Nation
Luis Castillo 'ready to go' for first start with the Mariners
Mariners acquire Pitcher Luis Castillo From Reds in BLOCKBUSTER TRADE
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Luis Castillo extension: Mariners agree to five-year deal with righty, reportedly worth $108 million
Luis Castillo traded by Reds to Mariners ahead of MLB trade deadline
With Mariners' playoff hopes in balance, Luis Castillo takes the mound with a smile - The Athletic
Reds trade Luis Castillo to Seattle Mariners before MLB trade deadline
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There's only one Luis Castillo': A year later, blockbuster trade looks like win for Mariners, Reds
Mariners acquire 'dominant' starter Luis Castillo from Reds