Luis Castillo, Frankie Montas where will they go?
Who will start for Reds following trades of Castillo, Mahle?
NY Mets: What would the Reds want in a trade for Luis Castillo?
Breaking Down the Luis Castillo Trade Return For the Reds
MLB Trade Deadline: Reds trade Tyler Mahle to Twins, Brandon Drury to Padres
BREAKING: Mariners get their man, acquire RHP Luis Castillo from the Reds - Lookout Landing
Luis Castillo trade details: Mariners win sweepstakes over Yankees, Dodgers
Righthander Luis Castillo stellar in his Seattle debut, helping the Mariners defeat the Yankees - The Boston Globe
Luis Castillo is amazing, and teams want amazing pitchers - Red Reporter
Reds trade Luis Castillo to Seattle Mariners before MLB trade deadline
Yankees to get close look at Reds' ace starter Luis Castillo
Cincinnati Reds trade Luis Castillo to the Seattle Mariners for prospects - Redleg Nation