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

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 ...

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

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

CINCINNATI — When Luis Castillo looked across the way at the Cincinnati Reds dugout exactly a year ago at T-Mobile Park in Seattle, the Mariners right-hander barely recognized any of the players on ...

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

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

The Seattle Mariners most pro-ready pitching prospect will likely have to wait a little bit longer until he gets his ...

The Cincinnati Reds welcome their former ace Luis Castillo back home Tuesday night when they open a three-game series with ...

Moore went 3-for-5 with two homers and four RBIs, but it wasn't enough as the M's couldn't hold multiple leads on Tuesday.

The Seattle Mariners and Cincinnati Reds play the second game of a 3-game set at Great American Ball Park Wednesday.