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

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

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

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

The Seattle Mariners are in desperate need of an offensive jolt, especially with the injuries to Victor Robles and Ryan Bliss ...

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

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

In Mariners news... The Mariners are going to punt the Luis F. Castillo decision another turn while they figure out what to ...

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

Just two days after Luis Castillo threw 92 pitches in a seven-inning gem for the Mariners, they're set to start Luis Castillo ...

The MLB season continues as the Seattle Mariners look to pick up the win on the road in Cincinnati when they take on the Reds ...

The Seattle Mariners starting rotation has still been trying to find a suitable fill-in for injured pitcher George Kirby. The ...