Castillo struggled against the Cincinnati Reds, going just 4.1 innings and giving up six earned runs. Unfortunately, this ...

The Seattle Mariners provided a great injury update on top prospect Jonny Farmelo, who tore his ACL last season with Low-A ...

According to a report from Bob Nightengale of USA Today, the M's were offered a young infielder for Castillo, but said no.

I wrote back in February that the Mariners should call the Red Sox about Vaughn Grissom, and I'm doubling down on it again ...

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

Seattle Mariners starting pitcher Luis Castillo surfaced in MLB rumors this winter when the clubs fielded inquiries on the ...

"I spent five years here, and being able to pitch here on that mound again was special," Castillo said Tuesday night.

Troy Taylor was thought to be one of the solutions in the bullpen for Seattle, but he's headed back to Triple-A Tacoma.

Austin Hays drove in four runs in his season debut, and the Cincinnati Reds beat Luis Castillo and the Seattle Mariners 8-4.

The Mariners begin a road trip with a defeat in Cincinnati, snapping Seattle's four-game winning streak despite two home runs ...

The Mariners lost to the Toronto Blue Jays on Friday night, but Tellez's tank off Bowden Francis stands out as the highlight ...

Raleigh, who won the American League Platinum Glove Award last season, is out to a roaring start this year, blasting six home ...