Later on Tuesday, Twitter will ask Chancellor Kathaleen McCormick to punish Musk, who is chief executive of automotive company Tesla Inc, for his legal team's alleged disregard of court orders to turn over Musk's messages about his decision to end the deal.
Musk's response to Twitter's motion was filed under seal. His lawyers have said in the past that the social media company was accusing Musk of withholding documents and messages to distract the court from the company's own discovery abuses.
Musk's deposition is expected to be a key part of the litigation. In past testimony, he has been combative under oath.