White Sox might've made a huge mistake with $30 million trade addition originally appeared on The Sporting News . Add The Sporting News as a Preferred Source by clicking here .
The Chicago White Sox were the top team in the AL Central at the MLB trade deadline, and with under one month to go in the regular season, they're trying to fight off the Cleveland Guardians from taking the division lead.
At the deadline, they added some much-needed pitching help, and while Huascar Brazoban has been a major disappointment, the addition of Luis Castillo has arguably been so much worse.
As USA Today's Bob Nightengale highlighted, with the $30 million the White Sox assumed for the rest of Castillo's contract in the deal with the Seattle Mariners , they might've just stuck themselves with a bad contract for a regressing pitcher.
White Sox might've made a big mistake with $30M trade for Luis Castillo
"Castillo is yielding a 7.52 ERA and has lasted just 26.1 innings in his six starts," Nightengale writes. "Oh, and they assumed the entire $30 [million] remaining in his contract too."
The White Sox needed pitching help, and badly. Castillo, a former three-time All-Star starting pitcher who was struggling with the Mariners this season, was seen as a potential buy-low option.
However, the White Sox have so far seen why the Mariners, a team that bought at the trade deadline, were so willing to trade away their once franchise ace.
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Castillo has a 7.52 ERA with the White Sox since coming over in the deal and has been a massive bust of a trade pickup for Chicago in their tight AL Central race with the Guardians.
In just six outings for the White Sox, he's already contributed -0.5 bWAR, proving to be a complete net negative for the club in just the month since being acquired.
His most recent outing in September was the worst of the bunch, as he went just four innings, allowing six earned runs to the Houston Astros in a crushing loss that put them well behind the race for the AL West title and a Wild Card spot.
While he could still turn things around this season, or even over the next two years with his 2027 contract and 2028 vesting option, the odds aren't looking great for the now 33-year-old right-hander to get back on track.

