In addition to the starting duo, the M's also have another Julio Rodríguez in the organization "We are duplicating names left ...

Legumina pitched the entirety of spring training with the major league club. He was one of the team's most impressive ...

There are now two Luis Castillos in the Mariners' rotation -- one nicknamed "The Rock," the other "The Pebble." Here's more ...

It didn’t stretch the length of that 18-inning playoff game between these teams three seasons ago, but Tuesday night’s ...

No, they're not the same dude. Yes, it's confusing. The Thursday starter was three-time All-Star Luis Miguel Castillo, ...

The Mariners optioned Castillo to Triple-A Tacoma on Thursday.

Castillo didn't factor into the decision Wednesday against the Astros after giving up four runs (three earned) on six hits and five walks in four innings. He struck out three.

Just two days after Luis Castillo threw 92 pitches in a seven-inning gem for the Mariners, they're set to start Luis Castillo ...

Mariners rookie second baseman Ryan Bliss will be out for 4-5 months with a torn left biceps muscle, the club announced ...

The Seattle Mariners are still searching for the short-term replacement to starting pitcher George Kirby. The 2023 All-Star was shut down during sprin ...

For the second game in a row, the Mariners are expected to have a Luis Castillo start a game for them. Confused? You're ...

Luis F. Castillo will be making his first major league start. The 30-year-old has three MLB relief appearances under his belt ...