Mariners notes: Luis Castillo debuts in New York, Seattle splits weekend series with Angels
Luis Castillo discusses contract extension with Mariners
Castillo sharp, Mariners blank Jays 4-0 in wild-card opener
Did the Reds do well enough in their tear-down trades? Judging their deals in hindsight - The Athletic
Luis Castillo loses perfect-game bid in 7th in Mariners' win
MLB trade grades: Seattle Mariners land trade deadline's top available pitcher in deal for Luis Castillo - ESPN
Brock: Embrace Mariners' big opportunity instead of lamenting prospect loss - The Athletic
Juan Soto and Pablo López emerge as Dodgers' top trade targets - Los Angeles Times
MLB power rankings: Trade rumors fly as deadline looms - Sports Illustrated
Seattle Mariners trade for Luis Castillo