Castillo battled through five laborious innings for the M's on Sunday against the Toronto Blue Jays, earning the win, but ...

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

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

The Mariners have reportedly made pitcher Luis Castillo "off limits" in trade talks. "One club who offered a young infielder ...

Of the 23,434 men who’ve played Major League Baseball, only 190 have identified as Jewish. Seattle Mariners reliever Trent ...

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

Seattle is looking to upgrade its lineup, but is not currently interested in trading from its vaunted rotation to do so. Read ...

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

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

The Seattle Mariners are in desperate need of an offensive jolt, especially with the injuries to Victor Robles and Ryan Bliss ...

Castillo (2-2) picked up the win Sunday at Toronto, yielding three runs on 10 hits and two walks over five innings. He struck out five. Castillo walked away with his 75th career win despite giving up ...

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