A probable cause hearing is scheduled for Thursday. A judge granted a delay last month in the proceeding after prosecutors asked for more time to present evidence to a grand jury.
Hernandez has pleaded not guilty to murder in the death of Odin Lloyd, who was found shot to death June 17 near Hernandez's Massachusetts home.
Prosecutors say Hernandez orchestrated Lloyd's killing because he was upset at him for talking to people Hernandez had problems with a few days earlier. Hernandez's lawyers say they are confident he'll be exonerated.
Hernandez is being held at a county jail without bail.