Image by Keith Allison from Wikipedia Lemierre's syndrome is an exceedingly rare complication of tonsillitis characterized by an infected clot of the jugular vein leading to sepsis. It may also have potentially influenced Super Bowl XLVII due to an interesting quirk in history. Back in 2008, a former Heisman Trophy winner from Ohio State University named Troy Smith was the quarterback for the Baltimore Ravens. Great things were expected of him as he was gearing up to start in th…