Luis Castillo’s name has swirled in trade rumors for much of the offseason, as Castillo is far and away the priciest member of the Mariners’ rotation.

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

Castillo came up in the Arizona Diamondbacks system and signed with the Tigers as a minor-league free agent before the 2022 ...

The Seattle Mariners' 2025 roster needs more offense to compete for a postseason berth. Could Toronto Blue Jays shortstop Bo ...

Seattle Mariners All-Star Luis Castillo won't be the only player with his own name at spring training after a reported ...

The Mariners signed former Tigers right-hander Luis F. Castillo to a minor league contract and spring invite. Read more at ...

The Seattle Mariners have been shopping starting pitcher Luis Castillo this winter. Are the San Francisco Giants a realistic ...

The Mariners' roster is effectively set with the return of Jorge Polanco. Here's what it means for Seattle's infield mix.

Most will defer to the Seattle Mariners pitcher—an All-Star in 2019, 2022 and 2023, and a Cy Young-caliber hurler in the most ...

Nets NRI deal from Seattle ...

The Seattle Mariners had one of baseball's best starting ... them from clinching a spot in the postseason. Veteran hurler Luis Castillo has been the subject of trade rumors this winter.

The Mariners fell one win short last season and need more offense but so far this off season they've added nobody ...