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Luis Castillo dealt to Mariners by Reds for 4 prospects - NBC Sports
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Luis Castillo Deal Shouldn't Affect View of Mariners System
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Mariners excited to see what Luis Castillo can accomplish with full season in Seattle, Mariners
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All-Star pitcher Luis Castillo will begin tenure with Seattle Mariners against New York Yankees - ESPN
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Luis Castillo traded by Cincinnati Reds to Seattle Mariners EMERGENCY POD
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Castillo to make Mariners debut Wednesday at Yankees
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MLB Trade Deadline: Reds trade Tyler Mahle to Twins, Brandon Drury to Padres
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There's only one Luis Castillo': A year later, blockbuster trade looks like win for Mariners, Reds
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Reds trade Luis Castillo to Mariners, add 4 well-regarded prospects - The Athletic
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SeattleTimes] 'There's only one Luis Castillo': A year later, blockbuster trade looks like win for Mariners, Reds : r/Mariners
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Luis Castillo traded to Mariners by Reds for four prospects
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Luis Castillo trade takes Mariners beyond ending the playoff drought - Sports Illustrated