Pro Athlete Suddenly Collapses and Dies of Heart Attack. He Was 31.

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Minor League baseball player Matt Pobereyko, 31, died suddenly of a heart attack.

Pobereyko was in his apartment in Chicago when he collapsed. His girlfriend and his brother later discovered him.

“He just dropped, and that’s all we know,” Daniel Pobereyko said. “We don’t know.”

“There’s nothing outstanding on the autopsy. But from what I understand, he would have gotten a clean bill of health if he had a pulse.”

Pobereyko played baseball at Kentucky Wesleyan College before signing a contract with the Arizona Diamondbacks.

Pobereyko was known as a strong and healthy 6-foot-3 and 220-pound athlete. He was found “unresponsive on his kitchen floor” and “pronounced dead on the scene.”

Warrenville Police Chief Sam Bonilla said, “There were no suspicious circumstances to report, and an autopsy conducted the following day did not reveal anything further.”

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A cause of death is “pending further investigation,” a DuPage County coroner’s spokesman said. It will likely take 7½ more weeks for a formal cause to be determined, the spokesman said.

Pobereyko’s death came as a shock to loved ones, his brother said.

“For what we know now, there’s really no leads,” Daniel Pobereyko said. “They saw him earlier in the week, and he seemed to be perfectly fine.”

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Pobereyko played two winter seasons, 2021-22 and 2022-23, for Algodoneros de Guasave in the Mexican Pacific League, and the team placed a wreath on the pitcher’s mound at Kuroda Park in Guasave and wrote the number 56 in chalk.