Kansas City blew a 21–3 lead in last year’s AFC championship game by not paying attention to details. We’ll find out Sunday if the team learned any lessons.

George Karlaftis remembers the Chiefs’ last game before he joined the team. They were at home. He was in Dallas, preparing for the draft. He had watched Kansas City beat Buffalo (“That was all-time wild game”) and then he watched the AFC championship game against Cincinnati. Kansas City raced to a 21–3 lead.