The Detroit Lions lost their huge halftime lead and the Baltimore Ravens lost both their composure and the football just inches from advancing to Super Bowl 58 next week on the Las Vegas Strip. It'll be the San Francisco 49ers and the Kansas City Chiefs instead in a rematch of the Super Bowl four years ago after Lions coach Dan Campbell lost two big gambles by going for it on fourth down in field-goal range and the Ravens frittered away their favorable odds with a series of dubious decisions that led to two end zone turnovers, eight yellow flags and a trio of turnovers to K.C.'s zero.