CNN  —  No one knows the dangers of playing in the NFL more than former quarterback Alex Smith . In 2018, while playing for the Washington Commanders, the veteran signal-caller suffered a gruesome leg injury which would turn his entire life upside down . The severity of the injury was such that he underwent multiple surgeries to treat a spiral and compound fracture to his right tibia and fibula. But then came the real battle. Smith subsequently contracted sepsis – a life-threatening response by