Three men, including two sons of a prominent Melbourne barrister, have been sentenced to prison terms for a drunken attack on two men near the MCG after an AFL match.

But at least one of the men could still avoid prison after appealing his sentence and being granted bail.

Key points: The magistrate said the men were involved, to varying degrees, in a "gross and unjustified" attack

The magistrate said the men were involved, to varying degrees, in a "gross and unjustified" attack Video showed the victims being repeatedly punched and kicked as they lay on the ground

Video showed the victims being repeatedly punched and kicked as they lay on the ground One of the men has been released on bail pending an appeal hearing next year

Dominic Walker, Sam Walker and Benjamin Fitt all pleaded guilty to two counts each of intentionally causing injury in an attack after a Richmond vs Hawthorn match in September last year.

Dominic Walker was jailed for a year, Sam Walker was sentenced to six months and Benjamin Fitt was sentenced to four months.

However, after about 90 minutes in custody, Sam Walker's lawyer launched an appeal against his sentence and successfully applied for his client to be released on bail.

The appeal will be heard in the County Court in February.

Fitt's lawyer scrapped a planned appeal, telling the magistrate "it was listed in haste".

It is not yet known whether Dominic Walker will appeal.

The Walker brothers are the sons of Tim Walker QC.

Magistrate Duncan Reynolds said the "sustained attack", which took about 45 seconds, happened just after midnight after "some sort of confrontation".

The men lashed out in a "gross and unjustifiable" way towards the victims, he said.

Video showed the victims, Leonard Tricarico and David Raeside, being repeatedly kicked and punched as they lay on the ground outside the Pullman Hotel on Wellington Parade.

'You're going to be dead'

The court heard the three men and the two victims had separately watched the game from the Melbourne Cricket Club members area.

Dominic Walker was recorded on security camera looking "unsteady on his feet" and "highly intoxicated".

The men later got into an argument with Mr Raeside and Mr Tricarico outside the hotel.

"Raeside was kicked forcefully to the thigh by one of the males and yelled out," a summary of the evidence stated.

The two men waited in a side street for about 10 minutes before walking back to the hotel to get a taxi.

Mr Tricarico saw Fitt and grabbed him by the shirt. The Walker brothers were in a taxi and got out to help their friend.

Sam Walker wrestled with Mr Tricarico.

Mr Raeside tried to stop him, saying "let's go", but that was when he was hit in the head and fell to the ground.

Dominic Walker then punched and kicked Mr Raeside while he was on the ground.

Sam Walker, Dominic Walker and Benjamin Fitt assaulted the men after a football match between Richmond and Hawthorn. ( AAP: David Crosling/James Ross )

"Raeside's head hit the road with each punch. He made no attempt to fight back," the summary said.

While he was on the ground, Mr Raeside was punched by Fitt too, who also attacked Mr Tricarico.

Sam Walker continued attacking Mr Tricarico, even though he was yelling out, "My arm is broken, just leave me alone".

At one point Dominic Walker threatened Mr Raeside by saying, "I'm going to f***ing kill you, you're going to be dead".

"Walker stood up and stomped on Raeside's head three times whilst he remained incapacitated on the road," the statement said.

The three attackers then simply walked off, leaving their victims behind. Mr Raeside was unconscious.

Court hears mental health concerns

Magistrate Reynolds said the victims, who were also drunk at the time, suffered "significant physical injuries" and the crime was having an "ongoing impact" on their lives.

He said he accepted the attackers were genuinely remorseful and a considerable number of character references suggested the bashing was an "aberration".

The court heard both Dominic Walker, 28, and Sam Walker, 25, had a history of alcohol and drug abuse.

Fitt, 28, experienced depressive mood disturbance and alcohol-related mood issues, the court heard.

Concerns were raised in court that Fitt's mental health may deteriorate in jail.

The magistrate said all of the men had "conscientiously" taken part in treatment for their issues.

He said each participated to varying degrees in the assaults.

The courtroom was packed for the sentence.

Family and friends of the attackers cried and hugged each other, including Mr Walker QC, after the men were directed into the dock and through a door into custody.

Under the terms of a two-year community corrections order, each of the men will be supervised by Corrections on their release from jail.

When they are released, they all face a one-year ban on entering a licensed venue.