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

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

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

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

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 ...

Most of the Seattle Mariners offseason has been focused around fans and media members lamenting the team's financial ...

There's also been plenty of chatter around the Mariners possibly trading starting pitcher Luis Castillo in order to free up money, but the bottom line is this: The M's can't trade Castillo ...

The Seattle Mariners and the New York Mets are looking to sign free-agent first baseman Pete Alonso. There's another player, Luis Castillo, who could satisfy the Mets' need and in hindsight the ...

Nearly two weeks after declaring the Seattle Mariners 'one of the biggest losers' of the offseason, former MLB executive Jim ...

The Mariners are still in the market for infield improvements, but with a limited budget and few teams willing to trade MLB ...

Seattle Mariners starting pitcher Bryan Woo was recently listed as one of the 'breakout' candidates around baseball as spring ...