Nascar champion Kyle Busch died of pneumonia and sepsis, family says

Nascar champion Kyle Busch died after severe pneumonia progressed into sepsis, his family has said in a statement released to The Athletic.

The illness had resulted "in rapid and overwhelming associated complications," the statement said.

Busch died suddenly aged 41 on Thursday after what his family had described as a "severe illness".

Nascar described Busch as a "generational talent" who had won two Cup Series titles and 63 races.

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