An elderly fraudster allegedly duped basketball card collectors with Michael Jordan cards that turned out to be slam junk.

Denver resident Mayo Gilbert McNeil, 82, is accused of bilking card collectors out of $800,000 by selling and trading phony collectible cards including fake 1986 Fleer-brand Jordan rookie cards - which can fetch thousands a pop.

"Mr. McNeil defrauded sports memorabilia collectors of more than $800,000 by intentionally misrepresenting the authenticity of the trading cards he was peddling when, in fact, they were counterfeit," Michael Driscoll, assistant director-in-charge of the FBI’s New York field office, said in a news release.

McNeil is facing conspiracy to commit wire fraud charges, according to a complaint unsealed in federal court in Brooklyn. 

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This undated photo provided by the U.S. Attorney's office, shows a counterfeit Michael Jordan basketball card prosecutors say was one of several traded and sold by a Colorado man. Prosecutors in New York say 82-year-old Mayo Gilbert McNeil made more than $800,000 off the scheme over four years. (U.S. Attorney Eastern District of New York via WHD)

Authorities on Wednesday arrested McNeil in Denver, where he will make an initial appearance in U.S. district court. He will then be arraigned in the Eastern District of New York at a later date, according to the FBI. 

The NYPD worked with the FBI on the case, The New York Post reported.

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A 1986 Fleer Jordan rookie card sold for nearly $100,000 in 2020, graded at a 10 – or perfect/mint condition – by Goldin Auctions.

McNeill allegedly provided fake authenticity and grading scores for the cards as part of his dealings. He even obtained authentic, valuable cards for the fakes he had: He reportedly traded two fake Jordan cards for two authentic Tom Brady cards in 2017.

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Michael Jordan, left, working his way around Brad Daugherty, heads toward the basket in first half action at the Coliseum. (Getty Images)

He also made a deal with a resident in Manhasset, New York, for his cards, taking $4,500 home in 2019.

McNeil insisted to the that he did "nothing wrong," declining to comment further.

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The FBI’s Business and Securities Fraud Section is handling the case, with the Department of Justice handling the prosecution. 

The contributed to this report.