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

The Seattle Mariners starting rotation was the team's most sure thing when spring training began. The group featured three ...

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.

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