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 ...

The undisputable strength of the Seattle Mariners in 2024 was the starting pitching rotation. The group led the major leagues in quality starts and was the onl ...

One week after taking the Seattle Mariners to task in The Athletic, former MLB executive Jim Bowden shredded the team on 93.3 ...

Bryan Woo, who already had a dynamite 2024 season for the Seattle Mariners, is predicted as a further "breakout" candidate ...

It seems as if Seattle Mariners pitcher Bryce Miller is doing all he can to level up in 2025. By the looks of it, Miller is experimenting with a cutter as spri ...

The undisputable strength of the Seattle Mariners in 2024 was the starting ... George Kirby and Luis Castillo made it in 2023 and Logan Gilbert made it for the first time of his career in 2024.

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