Mariners pitcher Luis Castillo was open to extension with Reds
MLB rumors: Here's how the Yankees blew it with Luis Castillo
Luis Castillo traded to Mariners by Reds for 4 prospects
Dipoto details why Mariners made Luis Castillo trade, their rotation plans - Seattle Sports
The next MLB trade deadline move Reds could make after Luis Castillo, Tyler Naquin
Mariners Acquire Luis Castillo - MLB Trade Rumors
Cincinnati Reds: Tracking trade deadline deals
Seattle Mariners acquire Luis Castillo in trade with Cincinnati Reds
Seattle Mariners acquire Luis Castillo, send package highlighted by prospect Noelvi Marte to Cincinnati Reds - ESPN
Yankees news: Mariners trade for Luis Castillo, former Yanks target - Pinstripe Alley
Seattle Mariners acquire Luis Castillo, send package highlighted by prospect Noelvi Marte to Cincinnati Reds - ESPN