Luis Castillo injury update: When will Reds SP return to rotation

Why the New York Yankees Won't Trade For Cincinnati Reds SP Luis Castillo - Sports Illustrated NY Yankees News, Analysis and More

Reds acquire 4 prospects from Mariners for Luis Castillo

Luis Castillo Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America

Why time is now for Reds to trade 2 potential All-Stars

Should the Phillies pursue Luis Castillo before the trade deadline? – Philly Sports

Yankees, Dodgers early favorites for Reds' Luis Castillo

Luis Castillo's trade value: Nine proposed deals for the Reds' right-hander - The Athletic

Seattle Mariners trade for Luis Castillo

Luis Castillo (pitcher, born 1992) - Wikipedia

Mariners Acquire Pitcher Luis Castillo From Reds, per Report - Sports Illustrated

40 in 40: Luis Castillo is the icing and the cake - Lookout Landing

Luis Castillo traded by Reds to Mariners ahead of MLB trade deadline