Castillo didn't factor into the decision in Saturday's Cactus League game against San Diego after giving up two runs on five hits over 4.2 innings. He struck out four.

After the Mariners announced Logan Gilbert as the opening day starter, Luis Castillo was super happy for his teammate.

Logan Gilbert shared his honest thoughts on earning the Mariners' Opening Day starting nod over Luis Castillo.

Logan Gilbert accomplished what he hoped after being named opening day starter. And in Seattle's other game, Luis Castillo ...

The Seattle Mariners had gotten close to a one-to-one replica of the major league lineup in recent days. But the club had to get creative with t ...

The Mariners reassigned Castillo to minor-league camp Monday. After spending the past two seasons in Japan's Nippon Professional Baseball, Castillo returned stateside over the winter, joining the ...

On a day when he was given some disappointing news, Castillo once again proved why his nickname is “The Rock,” pitching three ...

I know it's just a three-inning sample in spring training, but after watching him pitch against the Cleveland Guardians on Monday, I do think it's fair to have ...

Beyond the contract, Castillo felt more secure in his situation when Jerry Dipoto, the Mariners president of baseball operations, told the media that trading a pitcher from the starting rotation w ...

Seattle Mariners pitcher Luis Castillo was at the center of offseason trade rumors this offseason. Nonetheless, the hurler didn’t let that put a damper on his winter break. “I didn’t have ...