For more than 20 years, he claimed he had influenced matches all over the world.
In his tell-all e-book Kelong Kings, Wilson Raj Perumal bragged about his role in getting teams to throw matches and even to qualify for the World Cup.
Wilson Raj, who is in jail in Finland after his arrest on April 16, insisted that just about everyone has a price.
And so does he, it seems.
He told The New Paper his enemies had betrayed him and he figured he would make a tidy sum from the e-book.
In an e-mail sent to this reporter in mid-March last year, he had said at first: "I have no inclination to write a book (or) make money out of this."
Yet, his views later changed when he learnt about the Amanda Knox case.
In 2007, Ms Knox, then 20, was a suspect in her roommate's murder in Italy. She was convicted of murder and spent four years in jail, but she was acquitted in 2011.
She later wrote her memoir, titled Waiting To Be Heard.
In late March last year, Wilson Raj e-mailed this reporter: "Amanda Knox got US$4 million (S$5 million) for her book. The b**** is a murderer and a liar, and she becomes a celebrity overnight. I am contemplating to contact a publisher."
Nothing in football was sacred to the man who claimed to love The Beautiful Game.
Not local games, international friendlies, hallowed grounds in England and no, not even the World Cup.
Teams, players and officials were all for sale, judging by the explosive revelations in the convicted match fixer's e-book.
Now, not only is his book going to land him in trouble with his former associates, it seems that the Singapore authorities might be doing some "contacting" of their own.
A Singapore Police Force spokesman said in an e-mail: "The authorities are aware of the e-book Kelong Kings allegedly written by Wilson Raj Perumal.
"We will be looking into the matter and will take appropriate actions where necessary."
The Football Association of Singapore (FAS) told The New Paper yesterday that it will continue to "work closely with the relevant authorities, both at the domestic and international levels", to combat match fixing.
The FAS spokesman said: "We urge anyone with evidence to step forward and present the information to the authorities as close cooperation and concerted efforts by all parties will go a long way in combatting the threat of match ﬁxing."
It is unclear what the share of Wilson Raj's cut for Kelong Kings is.