Luis Castillo Moves to White Sox in Mariners Salary Dump
Seattle sends starter Luis Castillo to AL Central-leading Chicago in exchange for reliever Seranthony Domínguez, outfielder Nolan Jones, and catching prospect Boston Smith.
The Mariners traded right-hander Luis Castillo to the White Sox on Saturday night, receiving reliever Seranthony Domínguez, outfielder Nolan Jones, and catching prospect Boston Smith in return. Chicago is absorbing all remaining money on Castillo's contract, which runs through the end of next season. The deal potentially opens a rotation spot in Seattle for top prospect Kade Anderson. Both Castillo and Domínguez carry high ERAs and inconsistent peripherals this season, while Jones has spent 2025 in Triple-A.
More on the Mariners wire.
Mariners Confirm Luis Castillo Departure to White Sox
The Mariners' official account posted a farewell message to Luis Castillo, signaling a completed trade or transfer to Chicago.
Mariners deal Luis Castillo to Chicago in multi-piece swap
Seattle sends ace starter Luis Castillo to the White Sox and receives a reliever, two minor leaguers, and cash in return.
Muñoz Deployed for Multi-Out Role for First Time This Season
Seattle's closer Andres Muñoz is being stretched beyond his usual three-out limit, a notable usage shift with high-leverage implications.
George Kirby Drawing Trade Interest as Mariners Open to Dealing Ace
Seattle is listening on Kirby and other starters as the trade deadline approaches, with multiple clubs already in contact.
Mariners Prospect Brock Moore Exits Start With Finger Issue
Moore left his minor league outing with Double-A Arkansas early, raising concern about a finger injury for the Seattle pitching prospect.
Bliss Knee Injury Under Evaluation After Sunday Game
Seattle Mariners player Bliss hurt his knee early in Sunday's contest and is seeing a doctor, raising IL concern.