Michael Avenatti, facing extortion charges, upped the ante in his feud with Nike over the weekend, dumping 41 pages of documents which he claims are evidence showing the retailer "bribed players to attend 'Nike' colleges."

"This evidence is now in the hands of law enforcement," Avenatti said on Twitter. "Still waiting for Nike to deny they paid bribes and lied to the government for years about it. They know they did it and are guilty as hell."

Avenatti 2: Nike should be criminally indicted on well over 200 counts and should also explain why they misled their investors/the SEC. If I'm lying or the docs are not legit, I challenge @nike to issue a stmt claiming no bribes were ever paid. Just Do It Nike!

Nike said in a statement to CNBC that it won't respond to the latest Avenatti allegations, pointing to the fact that the celebrity lawyer currently faces fraud and extortion charges.

Nike will not respond to the allegations of an individual facing federal charges of fraud and extortion and aid in his disgraceful attempts to distract from the athletes on the court at the height of the tournament. Nike will continue its cooperation with the government's investigation into grassroots basketball and the related extortion case.

This all comes after Avenatti, who has gained widespread notoriety in the past year for representing porn star Stormy Daniels in lawsuits against President Donald Trump and his former lawyer Michael Cohen, was arrested and charged in New York in March for trying to extort millions of dollars from Nike by threatening to take his allegations public.



At that same time, Avenatti was also separately charged in a second federal case in Los Angeles for embezzling a client's money "in order to pay his own expenses and debts," according to prosecutors.

Now, in the midst of the NCAA men's Final Four basketball playoff, Avenatti is still trying to take down Nike. He claims evidence that more than $170,000 has been paid out by the retailer to family members of basketball players, including the Phoenix Suns' Deandre Ayton, former University of Nevada Las Vegas player Brandon McCoy and Oregon Ducks' Bol Bol.



The documents include what appear to be bank statements, invoices and text messages. Avenatti said the scheme was initiated by Nike Elite Youth Basketball executives Carlton DeBose and Jamal James and was carried out by Gary Franklin of California Supreme Youth Basketball.

Avenatti also made allegations claiming Zion Williamson's mother, Sharonda Sampson, received payments from Nike during her son's recruitment when he was attending high school in South Carolina. Williamson plays for the Duke Blue Devils.

Williamson Tweet: About this denial by Coach K the other day relating to payments by Nike...Can you please ask Zion Williamson's mother - Sharonda Sampson - whether she was paid by @nike for bogus "consulting services" in 2016/17 as part of a Nike bribe to get Zion to go to Duke? Thx.

Duke's Director of Athletics Kevin White said in a statement that the university is looking into the allegations regarding Williamson and his mother.

"We are aware of the allegation and, as we would with any compliance matter, are looking into it. Duke is fully committed to compliance with all NCAA rules and regulations. Every student-athlete at Duke is reviewed to ensure their eligibility. With regard to men's basketball: all recruits and their families are thoroughly vetted by Duke in collaboration with the NCAA through the Eligibility Center's amateurism certification process."

Williamson has risen as a freshman to be the most talked-about player in college basketball this year. Williamson is the projected No. 1 pick in the NBA draft and just this week accepted two national player-of the-year awards during the Final Four tournament.