Per a report from MLB Network insider Jon Heyman, the Mariners signed right-handed pitcher Luis F. Castillo to a minor league deal with a non-roster Spring Training invitation attached.

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

The Mariners are cornering the market on right-handed pitchers named Luis Castillo. Seattle reached a Minor League deal with 29-year-old Luis Felipe Castillo on Tuesday, a source told MLB.com’s Mark ...

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 ...

SEATTLE MARINERS — Agreed to terms with RHPs Neftalí Feliz, Luis F. Castillo and Shintaro Fujinami on minor league contracts. TAMPA BAY RAYS — Agreed to terms with RHPs Jonathan Hernandez ...

Designated RHP Anthony Maldonado for assignment. SEATTLE MARINERS — Agreed to terms with RHPs Neftalí Feliz, Luis F. Castillo and Shintaro Fujinami on minor league contracts. TAMPA BAY RAYS ...