KANSAS CITY, Mo. >> The Bills and Chiefs have met seven times over roughly four years, building such an intense, competitive rivalry that Kansas City safety Justin Reid admitted that the Super Bowl champs just assume they’ll see Buffalo twice a year.

Once in the regular season and once in the playoffs.

So, the Chiefs begin working on them in the offseason, studying everything Buffalo does on offense and defense with their eyes on January. And it must be paying off, because while the Bills have won all four matchups in the regular season, and handed the Chiefs one of their two losses this season, Kansas City has won all three games played in the postseason.

The Chiefs will try to do it again Sunday night as they pursue an unprecedented third straight Lombardi Trophy, while the Bills will try to end what is fast becoming a postseason curse by finally beating Kansas City for the AFC championship.

“You always remember the feeling of not pulling through. That sticks with you for a while, and it really doesn’t leave,” Buffalo quarterback Josh Allen said. “But again, I think every year you go through in this league, you learn more things about yourself, about your team, about the game of football. We’re just grateful and humbled to have another opportunity at it.”

It’s hardly surprising that the Bills and Chiefs have met so often, or that they are meeting again, when you consider the collective star power. Allen could be headed to his first MVP award this season, while Kansas City counterpart Patrick Mahomes already has two.

The Bills have James Cook and Amari Cooper on offense, Gregory Rousseau and Von Miller on defense, while the Chiefs will have Travis Kelce, DeAndre Hopkins, Chris Jones and Trent McDuffie on the field Sunday night.

They’ll almost certainly have Taylor Swift in a luxury suite, too.

Talk about star power.

“I don’t think anyone is making this too big of a moment. Everybody knows how big it is,” said Mahomes, who is 4-2 in AFC title games with both of the losses coming in overtime, “but at the same time, we have to go about our process.”

After all, why mess with success?

As for the Bills, who have not made it back to the Super Bowl since losing to the Cowboys in their fourth straight appearance in the 1993 season, all of those playoff losses to Kansas City over the years have come in heartbreaking fashion.