The rivalry between the Buffalo Bills and the Kansas City Chiefs will add a chapter to its story this Sunday in the AFC championship at Arrowhead Stadium.

These two teams are very familiar with one another. If you combine regular season and playoffs, they’ve played eight times over the last five years. In those games, they’re evenly split with a 4-4 record. All four of the Bills’ wins came in the regular season, however. In the postseason, they are 0-3 vs. Kansas City.

Quarterbacks Josh Allen and Patrick Mahomes are what make the rivalry between the AFC foes so entertaining to NFL fans. They know how to put points on the board in the playoffs and they have already produced some instant classics.

Heading into this matchup, the two have their sights set on one thing, and that’s a trip to the Super Bowl. For Mahomes and the Chiefs, they are looking to be the first team in NFL history to win three consecutive Super Bowls. For Allen and the Bills, they’ll be looking to overcome their final hurdle to making a Super Bowl appearance.

Allen told the media this week how his mindset has changed for big moments like the AFC championship this coming Sunday.

“Early on [in my career] it was maybe anxiousness and eagerness,” Allen said. “While that’s maybe still there a little bit, it’s also gratefulness to be back in this situation of having a chance to play in the Super Bowl.”

Allen knows how challenging the task of taking down the defending champs is. He’s doing his best to stay locked in and give his team the best chance at booking a trip to the big game.

“Obviously, you gotta go put in the work and not cheat it… put your best foot forward to give you your best shot,” Allen said.

While Allen respects his opponent in the Chiefs, Mahomes also showed his respect to the Bills, and to Allen specifically.

“I think you just have to know you’re going to have to play your best football,” Mahomes said. “I’ve played against Josh [Allen] enough times to know that he’s going to come out there and play great football, especially in those big moments. For me, I have to play my best football whenever I get the opportunity to, and try to put our team in the best position to succeed. If that’s limiting turnovers, if that’s changing the field position – whatever that is, you have to find a way that day to win. When you go up against a great quarterback, it takes your best as well.”

Much like Allen and Mahomes are grateful to be in this position, fans of the NFL should be, too. This rivalry is the new Tom Brady vs. Peyton Manning, or Michael Jordan vs. the “bad boy” Pistons. Whatever rivalry you want to compare it to, the one thing we know for sure is it will be high-level football among two of the league’s best current organizations with a lot at stake for both sides.