Yahoo Sports reports: ORLANDO, Fla. — Last week, NASCAR lost one of its giants. Kyle Busch, the winningest driver in the history of his sport, died after complications from bacterial pneumonia led to sepsis. He was only 41 years old. Yet even as his body was betraying him and even as he was experiencing symptoms of bacterial pneumonia for “days to weeks” before sepsis set in, Busch kept doing what racers do. He ...