The fan said he didn't believe he broke any rules and was voicing his opinion before Cuban stood up and yelled at him to sit down.

A perfect example was on display during the Mavericks' recent game against the Sacramento Kings, where the organization ejected one fan who apparently chanted 'Fire Nico' chant. The incident took place when the Mavs were shooting free throws during a crucial moment of the game.

Multiple fan incidents during the Dallas Mavericks overtime loss to Sacramento on Monday night led to ejections from American Airlines Center.

A Mavericks fan ejected from American Airlines Center during Monday’s game returned to the arena Wednesday—this time with courtside seats, courtesy of Mark Cuban. Garrett Bussey said he and Cuban found common ground after a disagreement earlier in the week.

A video was taken of Mark Cuban telling fans to "Sit the f--- down" as they were chanting "Fire Nico" at the Mavs recent game.

Enough fans were ejected that it warranted an article on ESPN where Tim MacMahon confirmed that two fans were thrown out after minority owner Mark Cuban yelled at them to "Shut the f--- up and sit the f--- down!" One of the fans involved was wearing a t-shirt featuring owner Miram Adelson wearing a clown nose. He confirmed the story on X.

One fan was kicked out by security for mouthing the words “Fire Nico” while on the Jumbotron to sing Whitney Houston’s “I Wanna Dance With Somebody” and later showing off a sign with the same message during Dallas’ 129-128 loss to the Kings in overtime.

The Dallas Mavericks trade of Luka Dončić to the Los Angeles Lakers led to numerous tense interactions with fans on Monday.

The anger in Dallas is at a peak. Two Mavericks fans were ejected from the team’s arena following a shouting match with minority governor Mark Cuban, per ESPN. The incident occurred during a Dallas loss in overtime Monday to the Sacramento Kings.