Luis Castillo, Mariners Agree on Extension, per Report - Sports Illustrated
Luis Castillo Deal Shouldn't Affect View of Mariners System
Rosenthal: How the Reds missed an opportunity with Willy Adames; why the A's should be buyers; more trade deadline notes - The Athletic
Dipoto dives deep into how Luis Castillo has been Mariners' ace - Seattle Sports
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Why the Mariners traded for Luis Castillo and what it means for teams pursuing Juan Soto
Mariners who could get contract extensions
Mariners acquire 'dominant' starter Luis Castillo from Reds
Mariners outlast Rangers in 11, close in on playoff berth
BREAKING NEWS: Mariners, Luis Castillo Agree on BIG Extension
Mariners sign Luis Castillo to five-year, $108M contract extension
There's only one Luis Castillo': A year later, blockbuster trade looks like win for Mariners, Reds
Mariners ace Luis Castillo again has lofty goals — and they seem quite realistic this season, Sports
Mariners excited to see what Luis Castillo can accomplish with full season in Seattle, Sports
Mariners excited to see what Luis Castillo can accomplish with full season in Seattle
Seattle's Luis Castillo perfect through 6 innings vs Rockies