8:55 AM PT — A spokesperson for the Kansas City Police Department tells TMZ Sports … cops arrested the fan, 20-year-old Jacob Bross, for Peace Disturbance.
A Chiefs fan who stormed the field during Sunday night’s playoff game at Arrowhead Stadium was absolutely rocked by Bills star Stefon Diggs — and the wild scene was all captured on video.
The man in a Travis Kelce jersey sprinted onto the turf in the 4th quarter of the heated Buffalo vs. K.C. game … when, suddenly, Diggs went after him.
In footage shot by a fan in the stands … you can see the Bills wideout was so pissed over the interruption, he smashed the guy square in the back.
The hit was so hard — even Tony Romo, who was broadcasting the game for CBS, said on-air, “Diggs took out some frustration on him.”
What’s crazy — the fan actually got up after the hard hit … but he was immediately taken down by stadium security. Authorities then rushed him off the field.
It’s unclear if the fan was arrested … we reached out to cops, but so far, no word back yet.
As for the game — the guy probably should have stayed in his seat, ’cause he missed an all-time classic. The Chiefs went on to take down the Bills in a wild overtime finish, 42-36.
Originally Published — 6:07 AM PT