Calombaris stirred up by teen at A-League

MasterChef Australia judge George Calombaris is under police investigation after boiling over and shoving a young man at the A-League grand final in Sydney.

Calombaris, 38, was among the 41,546 football fans who watched Sydney FC beat Melbourne Victory in a tense penalty shootout at Allianz Stadium on Sunday night.

SBS footage posted on The World Game website shows the Network Ten television star, who supports Victory, walking onto the field post-match with fellow MasterChef personalities Matt Preston and Shannon Bennett before being heckled by Sydney fans.

The group, decked out in blue Sydney FC jerseys, can be heard yelling a number of phrases to Calombaris from the stand including "pay your staff" and "you dodgy bastard" after the pressure-cooker match.

Calombaris was in hot water last month after it was revealed his restaurant empire MAdE Establishment underpaid 162 staff a combined total of $2.6 million.

AAP understands the celebrity chef was upset by the abuse hurled at him including derogatory comments about his mother.

In an apology issued on Monday, Calombaris said he regrets how he reacted, however he was "genuinely shocked when post-match football banter turned into personal abuse about my family".

"While I am not proud of my reaction to the situation, I was offended by a spectator yelling out abusive and derogatory comments about my family," he said in a statement.

"I have spoken to Melbourne Victory FC and Football Federation Australia today to report the situation and I'm truly sorry that this has happened."

NSW Police say they have spoken to two men regarding an incident after the match and will be conducting further investigations.

"A 19-year-old man was allegedly assaulted by a 38-year-old man after a football game," a police spokeswoman told AAP on Monday.

Any witnesses who have not yet spoken to police are being asked to contact Crime Stoppers.