NFL legacies on the line in 49ers-Chiefs Super Bowl rematch for coaches and quarterbacks

LAS VEGAS (AP) — Kyle Shanahan can finally get past the Super Bowl hurdle and shed the label of a big-game coaching dud. Brock Purdy can go from being Mr. Irrelevant to Super Bowl champion. For Kansas City's Patrick Mahomes and Andy Reid, a win in the Super Bowl on Sunday against...