Why the Reds didn't extend Luis Castillo before Mariners trade
Righthander Luis Castillo stellar in his Seattle debut, helping the Mariners defeat the Yankees - The Boston Globe
Mariners Sign Luis Castillo To Extension - MLB Trade Rumors
Seattle Mariners trade for Luis Castillo
Luis Castillo trade takes Mariners beyond ending the playoff drought - Sports Illustrated
Seattle Mariners acquire Luis Castillo, send package highlighted by prospect Noelvi Marte to Cincinnati Reds - ESPN
The Mariners traded for Reds SP Luis Castillo and it's a wonderful move
Reds acquire 4 prospects from Mariners for Luis Castillo
Mariners acquire 'dominant' starter Luis Castillo from Reds
What would a Shohei Ohtani trade look like? We made proposals for 12 different teams
Seattle Mariners trade for Luis Castillo
Luis Castillo trade grades: Mariners, Reds both receive 'A' for deadline's first blockbuster
Luis Castillo trade grades: Mariners deal for another ace from Reds