Mobile phone footage of a fatal street fight after a high-profile boxing match has saved a young Perth man from being wrongfully convicted of murder and sentenced to life in jail.

Key points: The fight broke out after the Danny Green-Anthony Mundine bout in 2017

The fight broke out after the Danny Green-Anthony Mundine bout in 2017 Diego Hutton died after being beaten and kicked on the ground

Diego Hutton died after being beaten and kicked on the ground But a lawyer found mobile phone footage that cleared Jordan Clarke of murder

Jordan Peter Clarke, 24, spent more than eight months in custody after being charged with the murder of 37-year-old Diego Hulton, who died after a brawl in the car park of an Ellenbrook pub in February 2017.

The pub in Perth's north had been showing the boxing match in Adelaide between Anthony Mundine and Danny Green.

The brawl was started by members of Mr Hulton's group of friends, against members of Clarke's group, and was recorded by an onlooker on a mobile phone.

Clarke, who was also assaulted during the fight, was charged with murder and remanded in custody after eyewitnesses told police they had seen him kick Mr Hulton while he was on the ground.

The bar fight followed a bout between boxers Danny Green and Anthony Mundine. ( AAP: David Mariuz )

But Clarke's lawyer, Gary Massey, later analysed the mobile phone footage and discovered it was not his client who was responsible for the kick, leading to the charge being dropped.

Clarke did admit kicking Mr Hulton's brother during the brawl and today in the District Court he was fined $1,500 after pleading guilty to a charge of assault occasioning bodily harm.

Murder charge had 'significant' impact

His barrister, Sam Vandongen SC, said it was "very fortunate" the mobile phone footage existed, describing it as "amazing" that Mr Massey had discovered his client was not the one who kicked Mr Hulton.

Mr Vandongen said the murder charge and the time in custody had significantly affected Clarke and his family.

He said Clarke readily admitted kicking Mr Hulton's brother, but after that he had tried to defuse the situation, including yelling at one of his friends to stop further attacking Mr Hulton.

That friend, Salvatore Aaron Raimondi, had punched Mr Hulton, who was knocked unconscious and fell to the ground. He later died from his injuries.

Diego Hulton was fatally assaulted in a car park of a bar in Perth's northern suburbs. ( Facebook )

In August last year Raimondi pleaded guilty to a charge of doing an act likely to endanger life and was sentenced to four years and four months' jail.

Judge Wendy Gillan described the incident as "truly unfortunate" given a man had died, but she noted that prosecutors had accepted Clarke played no part in the death.

She described the kick to the head of Mr Hulton's brother as "not a full-force one", but said it was unacceptable to kick a person while they were on the ground.

Judge Gillan said she took into account Clarke's guilty plea, his good character and the 250 days he had spent in custody in determining that a fine was the appropriate penalty.