The family of Kyle Busch has revealed details from the medical evaluation of the legendary racer. Severe pneumonia progressed into sepsis leading to his death.

Kyle Busch's family earlier Thursday announced he had been hospitalized with a "severe illness."

Kyle Busch won 234 races across NASCAR’s top three series, including 63 in the Cup series. He won the Cup series championship in 2015 and 2019.

The race car driver was hospitalized earlier in the day due to a "severe" illness, according to a statement from his family.