A judge is holding an extraordinary four-day sentencing hearing for a disgraced Michigan sports doctor who sexually assaulted young elite gymnasts.

Larry Nassar is returning to court Tuesday in Lansing. Dozens of women and girls who were victims will be allowed to speak. Judge Rosemarie Aquilina is expected to order a sentence Friday.

Nassar pleaded guilty to molesting females with his hands at his Michigan State University office, his home and a Lansing-area gymnastics club. He also worked for USA Gymnastics, which trains Olympians.

The Michigan attorney general's office is seeking at least 40 years in prison for the 54-year-old Nassar. He's already been sentenced to 60 years in federal prison for child pornography crimes.

Olympic gold medalist Simone Biles on Monday said she was among the athletes sexually abused by Nassar.