Melbourne runner Andrew Nichol steps on Jake King's foot during a half-time melee.

Melbourne runner Andrew Nichol steps on Jake King's foot during a half-time melee. Photo: Joe Armao

The AFL has fined Melbourne $2000 after their club runner Andrew Nichol clashed with Richmond forward Jake King during a half-time melee at Sunday’s MCG game.

"A club runner ... may not interact with opposition players or the umpires at any time," the AFL said in a statement on Tuesday.

The Demons said Nichol appeared to stand inadvertently on King’s foot during the melee and he also grabbed King by the jumper.

Nichol has apologised to King and understands he should not have interfered with the melee, Melbourne football manager Josh Mahoney said.

"His sole purpose was to remove Jordie McKenzie from the wrestle, and separate the players," Mahoney said on the melbournefc.com.au website.

"However, he did tug on the jumper of Jake King, which is a clear breach of the rules.

"Andrew has been in contact with Jake, apologised for the incident, and is well aware of his responsibilities."

Under AFL regulations, a club runner is allowed to enter the field 'for the sole purpose of conferring briefly with the players of his club (and) .. must then immediately leave the playing surface', and may not interact with opposition players or the umpires at any time.

AAP and Scott Spits