Mariners get All-Star RHP Castillo for prospects Marte and Arroyo

Luis Castillo (pitcher, born 1992) - Wikipedia

Mariners officially ink All-Star RHP Luis Castillo to 5-year deal - Seattle Sports

Reds get Noelvi Marte, Spencer Steer, Victor Acosta at trade deadline

Edwin Arroyo is the #4 prospect in the Cincinnati Reds system - Red Reporter

Analysis: Are the Mariners done trading? Here are five bats and five relievers who can help

Pipeline Inbox: Will Reds deal prospects at the Deadline?

MLB trade deadline buyers and sellers: Juan Soto the headliner

How Frankie Montas, Athletics impacted by Mariners-Reds Luis Castillo trade – NBC Sports Bay Area & California

Seattle Mariners acquire Luis Castillo, send package highlighted by prospect Noelvi Marte to Cincinnati Reds - ESPN

Mariners acquire Reds All-Star SP Luis Castillo

Castillo to make Mariners debut Wednesday at Yankees

Seattle Mariners trade for 2x All-Star Luis Castillo from Cincinnati Reds

Why Mariners did and didn't make certain moves at trade deadline, Pro Sports

Mariners July Review. TEAM NOTES…the Mariners finished July…, by Mariners PR

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