A Florida judge has refused to delay Casey Anthony's upcoming civil trial from a defamation lawsuit.

Circuit Judge Lisa Munyon on Tuesday denied requests from Anthony's attorney to delay the trial, set to start April 10.

Anthony was acquitted last year of killing her 2-year-old daughter, Caylee. After Caylee disappeared in the summer of 2008, Anthony told investigators that a babysitter named Zenaida Gonzalez had kidnapped the toddler. A woman with the same name sued Anthony, claiming her reputation had been ruined.

During her murder trial, Anthony's attorney told jurors that the babysitter story was fabricated.

A motion on whether the lawsuit should be thrown out will be heard later this month.

Anthony currently is serving a year of probation at an undisclosed location in Florida for an unrelated charge.