By Marissa Calligeros and Craig Butt
Disgraced former AFL player agent Ricky Nixon has been arrested over an obscene comment he allegedly made on Facebook about a two-year-old girl.
Nixon was arrested in Bay Street, Port Melbourne, on Wednesday for what police described as "telecommunications offences".
It is alleged he became involved in a war of words with a woman on Facebook in which he posted a photo of her two-year-old granddaughter with the words "next f---".
Nixon has taken to social media of late boasting of his recent court win against "St Kilda schoolgirl" Kim Duthie, who had tried to stop the release of his self-published autobiography, Ricky Nixon - My Side, which details the unusual relationship the pair had in 2011.
The son of the grandmother on Facebook allegedly criticised Nixon's tell-all book, suggesting Nixon was "an idiot".
Nixon then blocked the woman's son, prompting her to say the former player agent could not "handle the heat".
"Can't handle the heat Ricky so you block them bahahaha classic hey," she wrote.
Nixon responded by posting a photo of the woman's two-year-old granddaughter with the lewd comment.
It is understood he then blocked the woman on Facebook.
She made a complaint to police on Wednesday morning.
"A 52-year-old Port Melbourne man was arrested at an address on Bay Street in relation to alleged telecommunications offences," a police spokeswoman said.
"He has been released pending further investigations."
Outside court last week, Nixon told reporters his book would serve as a "line in the sand" for his two sons and ex-wife Jude.
"I need to get my message out there so we can move on ... my side of the story out there I suppose," he said.
Ms Duthie, the so-called "St Kilda schoolgirl", has claimed the former player agent referred to her in the book as a liar who framed him for illicit drug use and sex with a minor by faking a video of an encounter in a hotel room when she was 17.
The young woman's lawyers said Nixon has claimed in the book that Ms Duthie drugged him, stole his credit card, and maliciously stalked one of his sons.
During last week's hearing, it was revealed Ms Duthie claimed Nixon had paid her $500 to go on the Network Ten show The Project on June 9, 2011, to lie about their relationship.
Ms Duthie alleged Nixon told her there would be a lot more money for her if she maintained the story that they had never been lovers, or used drugs.
Lawyers for Ms Duthie said she had been portrayed in the book as a "temptress, wicked woman, seductress, slut and prostitute", when in fact she had been a naive 17-year-old schoolgirl used and abused by Nixon who had been 47 at the time.
It was claimed Nixon exploited Ms Duthie's infatuation with a pair of St Kilda footballers whom he had been managing at the time.
Barrister Will Houghton, QC, for Ms Duthie, said in the eyes of the law she had been 17 and a minor when Nixon allegedly brought cocaine to her hotel room in February 2011, took the drug himself, and offered it to her.
Fairfax Media is seeking comment from Nixon.
- with Mark Russell