Kyle Busch, a two-time NASCAR champion, died Thursday at the age of 41 after severe pneumonia progressed into sepsis, his family announced. The medical evaluation, received by the family on Saturday, revealed that the sepsis caused rapid and overwhelming complications.

Busch, who won 234 races across NASCAR’s top three series, passed out in a Chevrolet simulator in Concord, North Carolina, on Wednesday and was transported to a hospital in Charlotte. He had been experiencing a sinus cold while racing at Watkins Glen on May 10 and had radioed in to his team saying he needed a “shot” from a doctor after the race.

NASCAR Community Mourns Kyle Busch

Despite his illness, Busch bounced back to win the Trucks Series race at Dover last weekend and finished 17th in the All-Star race on Sunday. He was preparing to race at the Coca-Cola 600 at Charlotte Motor Speedway when he became unresponsive in the simulator. Sepsis, a life-threatening medical emergency, occurs when the body has an extreme response to an infection, causing the immune system to damage its own tissues and organs.

NASCAR driver Brad Keselowski said he knew Busch wasn’t feeling well recently, but the severity of his condition wasn’t clear. Keselowski noted that running multiple races on the same weekend can be difficult on a driver’s health, but most drivers don’t want to miss a race for fear of being replaced. To honor Busch, all 39 drivers in the field for Sunday’s race will race with a black No. 8 decal on their car.

Legacy of Kyle Busch

Busch’s death has sent shockwaves through the NASCAR community, with many drivers and fans paying tribute to his legacy. As a two-time champion, Busch won more races than any driver in history, leaving a lasting impact on the sport. His family’s statement and the outpouring of support from the NASCAR community demonstrate the significance of his contributions to the sport.

The news of Busch’s passing serves as a reminder of the risks and challenges that athletes face, both on and off the track. As the NASCAR community mourns the loss of one of its greatest drivers, it also highlights the importance of prioritizing health and safety in the high-stakes world of professional sports.