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Luis Castillo Operating as Bulk Reliever on Tuesday, Should Managers Cut Ties?
Seattle Mariners right-hander Luis Castillo is slated to work as a piggyback reliever behind Mariners starter Bryce Miller on Tuesday against the Chicago White Sox, per Adam Jude of The Seattle Times. While Castillo has been one of the more dependable starting pitchers in baseball for nearly a decade, this move to the bullpen is a result of his brutal start to 2026. Across 44 innings (nine starts) so far this year, Castillo has recorded a 1-4 record with a 6.34 ERA, 1.57 WHIP, and 43 strikeouts. Miller opened 2026 on the injured list due to an oblique injury, but the combination of his return and Mariners right-hander Emerson Hancock's breakout may make it difficult for Castillo to rejoin the rotation. Even if the veteran gets another chance, his career-worst 13.4% K-BB rate could be an indicator that his time as a fantasy-relevant starting pitcher has come to a close.
Source: The Seattle Times - Adam Jude
Source: The Seattle Times - Adam Jude
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