Luis Castillo has been part of the Mariners' spring training efforts, adding to the team's strong rotation depth as they prepare for the 2024 season.

Luis Castillo was secured as a crucial addition to the pitching staff, highlighting the importance of having top-tier pitchers. His presence in the rotation is expected to provide reliability and solid strikeout numbers.

Luis Castillo was a significant trade target for the Giants this offseason, reflecting his status as a top-tier pitcher after his All-Star season in 2023. Although the Giants engaged in talks with the Mariners, no deal was finalized, and Castillo is set to remain in Seattle's rotation.

Luis Castillo's declining metrics have raised eyebrows, particularly his two-strike chase rate dropping to the league average, indicating potential risk in 2025, despite not fitting the criteria for a definitive bust.

Luis Castillo is a crucial part of the Mariners' rotation with favorable Cy Young odds (+2,500). His experience and skill set bolster the team's chances of success in the coming season.