Luis Castillo to make Mariners debut against Yankees
Seattle Mariners trade for Luis Castillo
BREAKING: Mariners acquiring Reds ace Luis Castillo in blockbuster trade
Luis Castillo Rumor Roundup - The evolving starting pitching market - Red Reporter
Breaking: Reds trade Luis Castillo to Mariners for Noelvi Marte, Edwin Arroyo, and two other minor leaguers - Red Reporter
MLB News: Reds Starter Luis Castillo Traded to Mariners in Blockbuster Deal
Luis Castillo goes from trade deadline target to Yankees foe
SeattleTimes] 'There's only one Luis Castillo': A year later, blockbuster trade looks like win for Mariners, Reds : r/Mariners
Mariners trade for Reds pitcher Luis Castillo ahead of deadline
Dave Roberts: Luis Castillo Trade To Mariners 'A Good Thing'