So far, five men and four women have been picked to serve on the panel in the trial against him.
A total of 12 jurors and four alternates eventually will be selected.
Wednesday morning 28 of 40 potential jurors moved on to phase 3.
Judge John Cleland said the trial will begin Monday.
He also said the trial is expected to last until the end of June.
Sandusky is accused of sexually abusing 10 boys for at least 15 years.
He has pleaded not guilty to the charges.