When this NFL season is discussed years from now, the most enduring story will be the Kansas City Chiefs' quest for three Super Bowls in a row.
Even if the Chiefs fall short of that historic accomplishment in Super Bowl LIX, they've already done something no other team has done. The Chiefs are the first team to win two straight Super Bowls and make it back to a third in a row.
There have been two instances in NFL history of teams winning three championships in a row, but they weren't three Super Bowl championships in a row.