A 50-year-old grandfather who was allegedly bashed with baseball bats outside his home in a Christmas Day dispute with neighbours will have his life support switched off.

Anthony Clark, 50, was allegedly 'thrown around like a rag doll', stomped on and hit with bats in the street outside his home at Moorolbark in Melbourne's outer eastern suburbs shortly before 11pm.

His wife was also knocked out in their driveway and Mr Clark's stepdaughter Jessikah Clark said he was 'pretty much gone'.

'My daughter's lost her everything now. She just wants her poppy to come home and he's never going to come home,' Ms Clark told Nine News.

'My mum is worried about everyone and is just lying there with him praying. But he's pretty much gone that's it.'

Anthony Clark, 50, was allegedly 'thrown around like a ragdoll', stomped on and hit with baseball bats in the street outside his home before 11pm (pictured is the last picture of Mr Clarke taken on Christmas Day)

'We have lost the best man in our whole lives,' Ms Clarke told the Herald Sun.

'No-one should have to die on Christmas Day just for looking after his wife and kids.'

The man's family was scheduled to arrive from Ireland and Canada on Sunday after which Mr Clarke's life support will be switched off.

The violence began as the family were saying their farewells on the street and fireworks were let off, causing a dog to bark and the owners to get angry, Jessikah Clark said.

The family said a gang of youths with weapons, including bats and metal bars, were involved in the attack.

Ms Clark also claimed there were about '15 men' that set up on them she and her mother were hit.

'They had bats...they smashed my car and they threw mum around like a rag doll.'

The alleged attack happened outside a house in Morrolbark (pictured is the victim's house) at 11pm on Christmas Day

Mr Clark's daughter Jessikah said the family were devastated over the violent attack

Mr Clark was allegedly confronted by a large group of men during the massive brawl.

His wife and 25-year-old stepdaughter were also allegedly attacked, his brother-in-law Mark told 3AW.

'He's a gentle giant, and he was brutally, and I mean, savagely, attacked,' he said.

'A whole gang of guys, ranging from teenage to mid-20s, approximately 10-15 of them with cars and baseball bats, attacked him, knocked my sister out.'

Mark said he believed his brother-in-law was trying to shield his baby during the brutal attack.

'They knocked my sister out, and had my niece - from what I understand - by the hair,' he told 3AW.

The man was repeatedly bashed in the head and was taken to hospital in a critical condition and placed in intensive care.

The family said there was no hope of recovery and his life-support will be turned off.

His wife suffered minor injuries and has been by his side at the hospital ever since.

An 18-year-old man was arrested but was later released.

'The exact circumstances surrounding the incident are yet to be established and an investigation is ongoing,' police said.

According to The Age four members of Mr Clark's family have been charged with affray after another dispute on Friday.

They are to appear at Ringwood Magistrates Court on May 25 after receiving bail.

Anyone who witnessed the incident or has information is urged to contact Crime Stoppers on 1800 333 000 or make a confidential report at www.crimestoppersvic.com.au.