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

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

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

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

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

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

Castillo (1-2) yielded six runs on seven hits and four walks over 4.1 innings Tuesday, striking out three and taking a loss against the Reds.

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

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

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

Luis Castillo, who starred for the Reds across parts of six seasons, is no stranger to the pressure of performing in front of a home crowd. His time with Cincinnati was marked by impressive ...

The Cincinnati Reds welcome their former ace Luis Castillo back home Tuesday night when they open a three-game series with the visiting Seattle Mariners. Both clubs are coming off three-game ...