Castillo had a strikeout rate under 8.0 in May (7.9), June (7.6), July (7.7), and September (7.2). His average fastball (95.7 ... of Castillo’s changeup, a grip change or new pitch may be ...

I know it's just a three-inning sample in spring training, but after watching him pitch against the Cleveland Guardians on Monday, I do think it's fair to have ...

The Seattle Mariners have reached an agreement with another pitcher named Luis Castillo, and the most astonishing part is that he's also Dominican, just like the current ace of their starting ...

The Giants were among the teams that engaged the Mariners earlier in the offseason in trade talks regrading Luis Castillo ... throughout his career. His fastball still sits in the 95-96 MPH ...

The missing link in Luis Castillo's pitching profile has been his lost ... Based on the direction of Castillo’s changeup, a grip change or new pitch may be required to pump some life into ...

As Nick Pollack of PitcherList first pointed out in January, Castillo's fastball velocity continues to drop, as does his swinging strike rate. When that happens, you'll go deeper into counts ...