S eattle Mariners right-hander Luis Castillo (hamstring) was seen throwing a bullpen session at spring training on Monday.

The Orioles finally got a Luis Castillo, but not "the" Luis Castillo from the Mariners. The distinction caused a minor ...

Continuing on with the spring pattern of having Logan Gilbert in the one spot and Luis Castillo in the second spot, Castillo follows Gilbert as the rotation turns over. The Mariners still haven ...

Expert recap and game analysis of the Cincinnati Reds vs. Seattle Mariners MLB game from April 15, 2025 on ESPN.

When Seattle visited Cincinnati recently, the narrative practically wrote itself — a homecoming for Luis Castillo ... and frustration in spring training this year. But let’s be clear ...

The Mariners dealt Luis F. Castillo to the American League East club; The former Nippon Professional Baseball pitcher had his first career major league starts this season.