The family of NASCAR champion Kyle Busch revealed that he died from severe pneumonia that progressed into sepsis.
- Kyle Busch, Two-Time Nascar Cup Series Champion, Dead at 41 Rolling Stone —
- Nascar champion Busch dies aged 41 BBC Sport —
- Heartbreaking moment Kyle Busch calls for medical assistance in his car during NASCAR race just days before his shock death at 41 Daily Mail —
- NASCAR legend Kyle Busch dead at 41 after sudden illness Washington Examiner —
- Kyle Busch dead at 41: Two-time NASCAR Cup Series champion, all-time great battled illness CBS Sports —