Yet, when it comes to impact arms like Roki Sasaki and Luis Castillo, neither is expected to be playing in Queens next season. “They feel pretty good about where they are with the rotation.

And most of the trade speculation involving Seattle's has surrounded veteran starting pitcher and three-time All-Star Luis Castillo ... returns for Castillo. When Sasaki signs (between Jan ...

There's also been plenty of chatter around the Mariners possibly trading starting pitcher Luis Castillo in order to free up ...

The Mariners are cornering the market on right-handed pitchers named Luis Castillo. Seattle reached a Minor League deal with ...

The Seattle Mariners have signed another pitcher named Luis Castillo, and the most amazing part? He's also Dominican!