With Mariners' playoff hopes in balance, Luis Castillo takes the mound with a smile - The Athletic

In adding Luis Castillo, Mariners make their splash with eye on elusive playoff berth - The Athletic

Mariners Acquire Luis Castillo - MLB Trade Rumors

Mariners Sign Luis Castillo To Extension - MLB Trade Rumors

Luis Castillo struggles, Mariners lose to Athletics

Luis Castillo extension: Mariners agree to five-year deal with righty, reportedly worth $108 million

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Mariners' bats waste Gilbert's gem in loss to Rangers

With Mariners' playoff hopes in balance, Luis Castillo takes the mound with a smile

Luis Castillo strikes out eight in Mariners win

Apparently the Mariners are pushing to prevent Luis Castillo from representing the Dominican Republic in the World Baseball Classic : r/baseball