Michael Avenatti expects to be indicted within the next 48 hours on federal charges related to his alleged Nike extortion scheme, he says.

The high-profile lawyer announced his impending indictment on Twitter.

“I intend on fighting these bogus/legally baseless allegations, and will plead not guilty to ALL CHARGES,” tweeted Avenatti.

“I look forward to the trial where I can begin to clear my name,” he said. “The indictment is the formal charging document that usually follows a criminal complaint, which is what was issued in connection with my arrest.”

Avenatti — who is also accused of tax, wire and bank fraud in California — will be tried in Manhattan on the extortion charges.

The US Attorney’s Office declined to comment Tuesday.

“I expect an indictment to issue from SDNY in the next 48 hrs charging me in connection with my arrest,” Avenatti said.

The 48-year-old was busted back in March for the alleged Nike scheme, which included him allegedly threatening to expose the company and payments he claimed it made to high school basketball players. Avenatti promised to remain quiet in exchange for $25 million, according to prosecutors.

It’s unclear whether the California native will be hit with new charges when he’s indicted this week.

Avenatti — who is best known for representing porn actress and President Trump accuser Stormy Daniels — has repeatedly denied the allegations against him. He and Daniels have since had a falling out.

With Post wires