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Mariners lose former Rookie of the Year contender acquired in Luis Castillo trade

Trading Luis Castillo to Chicago remains a big win for the Mariners, but one of the three players they acquired in return has decided his future lies elsewhere.

Published: Wednesday, 30 September 2026 at 5:00 PM
Mariners lose former Rookie of the Year contender acquired in Luis Castillo trade
Key Things to Know
  • Outfielder Nolan Jones has elected free agency, leaving the Seattle Mariners after arriving in the Luis Castillo trade.
  • Jones spent the 2026 season across three organizations without appearing in a Major League Baseball game.
  • He posted a .783 OPS at Triple-A Tacoma following his August move to the Mariners organization.
The Story in 60 Seconds

Outfielder Nolan Jones has elected free agency, departing the Seattle Mariners after joining the organization in an August trade involving Luis Castillo. Jones, who previously finished fourth in National League Rookie of the Year voting with the Colorado Rockies in 2023, spent time across three organizations this season without reaching the majors.

Jones posted a .783 OPS at Triple-A Tacoma after being acquired alongside Seranthony Dominguez and Boston Smith from the Chicago White Sox. Writer Paul Taylor notes that while the Castillo trade remains a net positive for Seattle, Jones' departure represents unfulfilled potential following two consecutive seasons of decline.

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