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

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

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

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

The Seattle Mariners head north of the border as they face the Toronto Blue Jays. It’s time to continue our MLB odds series ...

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

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

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

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

In a wild back-and-forth contest between the Arizona Diamondbacks and Chicago Cubs on Friday, Eugenio Suarez hit a home run ...

The Seattle Mariners are in the middle of their best stretch of baseball this year. They're 7-2 in their last nine games and have won or swept three series in a ...

Emerson Hancock gave the Mariners a strong start Thursday, after returning from a rough first start of the season. How long ...