The AFL will take no further action against a supporter evicted from Carlton's victory over Brisbane on Saturday for abusing an umpire.

The fan, who was thrown out of Marvel Stadium for allegedly calling umpire Mathew Nicholls a "bald-headed flog", received a warning from the League.

It comes amid a series of incidents over the last fortnight where supporters have reported overzealous policing of barracking from the grandstands.

However, the AFL has moved to deny any apparent crackdown, claiming there has been no official instruction to stamp out ardent supporters from having their say at the footy.

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"For over 100 years, the footy has been a place to come together, barrack, cheer and share in the experience in whichever way you choose," the League said in a statement.

"There has been no directive from the AFL to change this.

"The theatre of match day is one of the great sporting experiences, a place to be expressive and passionate about your team and the game, it always has been, it always will be.

"In season 2019 there has been no change to the expectations of the behaviour of everyone at games.

"We want fans to enjoy attending matches and allow other fans around them to do the same.

"While barracking and supporting is both strongly encouraged and a vital part of the game, offensive or aggressive behaviour will not be tolerated.

"Fans who consume alcohol on a match day are to do so responsibly.

"The AFL's zero tolerance stance on vilification remains."