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

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

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

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

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

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

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 are over .500 for the first time since Opening Day at 10-9. They'll begin the second leg of their current ...

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

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 giving their No. 6 starting pitcher another shot in the major leagues in a critical rubber match ...

The Seattle Mariners are on one of their best stretches of the season and will have a chance to continue the string of good ...