Chicago, Aug. 4 — The Chicago White Sox announced the addition of four players acquired at the July 31 trade deadline to their 26‑man roster on Friday, bringing the total number of roster adjustments this week to seven. Among the newcomers is right‑hander Luis Castillo, who arrived from the Seattle Mariners over the weekend.
Luis Castillo enters Chicago with a 3‑9 win‑loss record and a 5.06 earned run average. The statistics reflect his performance to date and provide a baseline for the club as it integrates him into the rotation. The pitcher’s experience is expected to contribute to the staff as the season progresses.
The other three players added alongside Castillo have not been named in the release, but their inclusion completes the quartet of deadline acquisitions the Sox have integrated. All four are now eligible to participate in upcoming games, expanding the depth of the roster.
The moves increase the active roster to 26 players, the maximum allowed under current MLB rules. By filling the roster with these additions, the organization aims to address positional needs identified after the trade deadline and to provide additional options for the remainder of the campaign.
The acquisition of Castillo from Seattle was finalized during the weekend following the July 31 deadline, marking one of the final transactions permitted under the league’s trade‑deadline guidelines. The White Sox have used the remaining roster moves to fine‑tune the lineup, reflecting a strategic effort to reshape the team’s composition as the season moves into its latter stages.