On Sunday, The Denver Broncos and Kansas City Chiefs faced off in a matchup that came down to the last play.

The Chiefs walked away with a 16-14 win after Kansas City blocked a last-second 35-yard field goal from the Broncos that would have won them the game and ended the Chief’s now nine-game winning streak.

However, tensions were high among fans in the stands for quite some time.

A recent video shows a fight between opposing sans that took place up in the upper deck of Arrowhead Stadium.

A Broncos fan is seen going up against two Chiefs fans before getting pulled into the row below and put into a headlock. Another set of fans fighting off to the right can also be seen.

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It seemed to simmer down until the two again started throwing punches at each other.

Security would then soon show up but that didn’t stop anything as the Denver fan was once again pulled to the ground, falling down multiple rows of seats.

Security was finally able to coral the fan until a completely different Broncos fan came in and sucker punched the guard, and jumped on top of him.

Finally, the scene calmed down after more security showed up, and the fan was thrown out.

It’s not been revealed who started the fight, but the fan who came in and started beating up on a security guard just trying to do their job is clearly in the wrong.

The Broncos And Chiefs Will Play Again

The Chiefs and Broncos will play each other again on Jan. 2 in Week 18 of the regular season.

Of course, the Chiefs appear to be going into the playoffs unscathed, but this could be a huge game for Denver.

If the season ended today, they would hold the seventh seed in the playoffs and have to fight to keep it.