C
White Sox land Luis Castillo from Mariners to bolster rotation
The White Sox acquired Luis Castillo from the Mariners in a multi‑player deal finalized on Aug. 1, adding a proven righty for the stretch run [1][2]. The return to Seattle included multiple players and cash considerations, while Chicago takes on the remainder of Castillo’s contract [1][2].Castillo arrives with a track record of innings and swing‑and‑miss stuff, even after an uneven first half that left his ERA north of five across 20 appearances (17 starts) this season [2]. Chicago will absorb significant future salary—roughly $24 million in 2027—as part of the move, a bet that stability and upside in the rotation can carry weight in a crowded race [2].Early evaluations graded the trade as a modest upgrade for the South Siders—useful depth and workload coverage more than a blockbuster—while still signaling intent for October [2]. The immediate plan slots Castillo into the heart of the rotation as Chicago barrels through the final two months [1][2].