Welcome to Luis Castillo-ception.On Thursday, the Mariners started a right-handed pitcher named Luis Castillo. On Friday, the ...

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

There are now two Luis Castillos in the Mariners' rotation -- one nicknamed "The Rock," the other "The Pebble." Here's more ...

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

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.

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

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

The New York Yankees could look to bolster their starting pitching rotation with a blockbuster trade for Colorado Rockies ...