The arrest comes as Avenatti was scheduled to stand trial Jan. 21 in the Southern District of New York on charges stemming from allegedly trying to extort Nike. 

The government alleges Avenatti, 48, tried to shake down Nike by demanding payments to not reveal potential damaging information about conduct inside the company's grassroots basketball division, the Elite Youth Basketball League (EYBL).

Avenatti has countered that he was merely representing a client who was acting as a whistleblower, a former Nike youth basketball coach who knew of potentially illegal conduct by Nike executives. Whether that trial still begins next week is unknown. Also on Tuesday, a judge in New York denied Avenatti’s request for a 30-day continuance.

Avenatti is also slated to defend himself in May 2020 in California on numerous federal charges stemming from a 36-count indictment that alleges he stole millions from clients, committed bank and wire fraud, lied during bankruptcy proceedings and didn’t pay taxes.

He additionally is facing a third federal trial this spring in New York for allegedly stealing some of the proceeds of a book deal by former client Stormy Daniels, a porn star who was allegedly paid $130,000 to not reveal she had a relationship with Donald Trump during the 2016 presidential campaign.

Avenatti came to national fame by defending Daniels and becoming a vocal critic of Trump.