Melbourne veteran Jordan Lewis says Clayton Oliver must learn to block out criticism as the AFL investigates claims he threatened a Carlton supporter after being sledged.

The 19-year-old was involved in a brief but animated exchange with the Blues fan on the boundary fence during the second term of Sunday’s game at the MCG.

There are reports the supporter labelled Oliver a “weak c***” and a “diver”.

The AFL will speak to Oliver on Monday amid allegations the midfielder responded to the sledge with a threat against the supporter.

“We’re working through it … once we’ve got an outcome we’ll let everyone know,” a league spokesman said.

Demons midfielder Lewis said Oliver needed to work on not letting critics get under his skin.

“You do get thick skin the longer you’re in the game,” he said on Monday.

“He’s obviously early on in his career. He wouldn’t have felt this for the first 18 years of his life.

“It is a whole new world that these young kids are entering and they have to understand it’s not necessarily personal but they’re trying to put us off our game.

“You can’t react to Twitter or fans who try and provoke you at games, you’ve just got to move on.”

Oliver was widely criticised for his reaction to high contact from West Coast’s Will Schofield a fortnight ago.

Schofield was offered a one-week ban by the match review panel but the Eagles successfully challenged the sanction at the tribunal.

Oliver denied he was a “faker” in post-match comments, and later took to Twitter to bite back at former Test cricketer Damien Martyn, who implied Oliver had taken a dive.

Former Hawthorn premiership player Lewis said players had to accept that there were few limits on what fans could throw at them.

“I think anything racial, and anything like that is clearly out of bounds – other than that, they can say what they want,” he said.

“It’s part of the game. You just laugh it off.”