# Mariners add a real prospect while shedding Luis Castillo’s salary

> **Newsylist Open Intelligence Dossier** · First detected: 2026-08-02 22:29 UTC · Category: Sports · Sources: 1 · Current Velocity: 1.25

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| seattletimes.com | Luis Castillo, Mariners teammates react to ‘shocking’ trade to White Sox | 2026-08-02 18:31 | [Source Link](https://news.google.com/rss/articles/CBMitgFBVV95cUxNellIazdiaV9fUHFmbzU1Z2dSRVlMdF9lbWZkRlJ4akFWbmszTzZ5WHc0WFhUbUR1RGQ4UEtjN0JnN3BiZzlDY0pYaF9xTHp6d2RMdGhIU1NnNk80NGF3RTVITnVRR3o0SnBTRjRMYU1Qb0Rfd1lRajJDZ2N1dUVPQ3hiRnk3QWpBRVZHc3NXZDhjVjM4S2QzOWpsbjVwb1dEakZJT096T21LWmpaSkoyZ3JzRFpVZw?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-08-02/mariners-add-a-real-prospect-while-shedding-luis-castillo-s-salary*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*