Lucas Giolito will enter the second half of the MLB season as a single man … TMZ Sports has learned the White Sox star’s wife just filed for divorce.
Ariana Dubelko filed the docs in a Los Angeles court on Monday afternoon. She cited “irreconcilable differences” as the reason for the split.
In her filing, Dubelko also asked for spousal support from the 28-year-old pitcher, who’s making $10.4 million with Chicago this season.
Despite Dubelko filing, a rep for Giolito told us the split was “a mutually agreed upon and amicable decision made by both parties.”
Lucas’ rep added … “Unfortunately the State of California does not allow for a joint filing.”
Nonetheless, the breakup is a shocking one — considering the two had dated since they were teenagers … and were often seen showing big love to each other on their social media pages.
In fact, back in September 2022 … Giolito filmed an ad for a Sox sponsor, and in it, he praised his marriage to Dubelko as one his “favorite” “unbeatable moments.”
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The two — who did not have kids together — got married in 2018 in a lavish wedding that featured a guest list which included MLB stars Jack Flaherty, Max Fried and James Shields.