The Orioles acquired right-hander Luis F. Castillo from the Seattle Mariners for cash considerations on Wednesday. The F. is important.

Luis F. Castillo is expected to be promoted from Triple-A Tacoma on Friday to make a spot start for the Mariners’ 2025 road opener against the San Francisco Giants at Oracle Park, located just a ...

CINCINNATI — When Luis Castillo looked across the way at the Cincinnati Reds dugout exactly a year ago at T-Mobile Park in Seattle, the Mariners right-hander barely recognized any of the players ...

New information has come to light on Luis Castillo trade negotiations between the Mariners and Red Sox, and they aren't ...

The Mariners signed Luis F. Castillo to a minor-league contract this winter after he spent the last two seasons pitching in the Japanese NPB with Chiba Lotte (2023) and Orix (2024), combining to ...

Castillo will start today’s game in San Francisco, in a delightful bit of serendipity to follow up veteran starter RHP Luis (M.) Castillo who started Wednesday’s victory over the Detroit Tigers.

Detroit Tigers relief pitcher Luis Castillo (54) throws to a Los Angeles Angels batter during the sixth inning of a baseball game in Anaheim, Calif., Monday, Sept. 5, 2022. (AP Photo/Ringo H.W ...

Castillo signed with the Chiba Lotte Marines of Japan’s Nippon Professional Baseball the following offseason. After turning in a 3.12 ERA across 49 innings for the Marines, Castillo moved to the ...

Ex-Tiger Luis Castillo (no relation to the other Luis Castillo) was called up by the Mariners. (AP Photo/Ringo H.W. Chiu) AP ...

Luis F. Castillo made three relief appearances for the Detroit Tigers in 2022. The Mariners signed him to a minor-league contract in January. He will take the No. 5 spot in the Mariners ...