Mariners trade All-Star Luis Castillo to White Sox, shedding payroll
Yahoo Sports • 1 min read • Latest: Sep 14, 2026, 3:25 PM
Last updated Sep 14, 2026
The Seattle Mariners traded right-hander Luis Castillo to the Chicago White Sox before the August 1 trade deadline. Castillo is owed $21.6 million for 2027 and has struggled with a 7.76 ERA in his time with the White Sox. Mariners management is credited with effectively moving Castillo's contract despite his poor performance, as he had a 5.06 ERA in 99.2 innings with Seattle. The White Sox aimed to bolster their rotation, although this trade could prove risky given Castillo's recent struggles.
- •Castillo had a 5.06 ERA with the Mariners before the trade.
- •He has allowed 41 hits and eight home runs in 29 innings with the White Sox.
- •This trade is seen as a significant move for the Mariners' payroll management.
- •The White Sox are seeking to improve their rotation with this acquisition.
- •Castillo's future performance could affect both teams' strategies.
- 3:25 PMYahoo Sports — Why it's a 'small miracle' Mariners traded $21.6 million All-Star to White Sox
"This Mariners-White Sox trade is looking weirder by the day.
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