Las Vegas ? New charges of felony coercion were filed Wednesday against O.J. Simpson and three co-defendants in the alleged armed robbery of two sports memorabilia dealers.

The revised complaint also drops charges against Walter Alexander and Charles Cashmore, who pleaded guilty Tuesday to reduced charges.

Alexander, Simpson’s golfing buddy, and Cashmore, at times a day laborer, disc jockey and bartender, have agreed to testify at a preliminary hearing against the former football star and the other men who went to a Las Vegas casino hotel room on Sept. 13 to retrieve items that Simpson said belonged to him.

The memorabilia taken from the hotel room was valued at as much as $100,000, according to police reports.

The revised complaint increases to 12 the number of charges against Simpson, Clarence Stewart, Michael McClinton and Charles Ehrlich.