Attorneys for Alan Dershowitz are expected to appear in Manhattan federal court Tuesday morning for arguments in the retired law professor’s bid to dismiss a defamation suit from an accuser of Jeffrey Epstein and to have her Boies Schiller Flexner lawyers disqualified from the case.

The dueling motions, set to be argued before Senior Judge Loretta A. Preska of the U.S. District Court for the Southern District of New York, represent the latest front in a high-profile battle between Dershowitz, a former attorney for Epstein, and Virginia Giuffre, who has claimed that she was recruited as a minor into the deceased financier’s underage sex ring and then trafficked to Dershowitz and other prominent men for sex.