The Wall Street Journal reports that Caesars Entertainment Corp.’s largest unit is preparing to file for bankruptcy protection sometime between today and next Tuesday, Jan. 20th. The company says the Chapter 11 petition should not immediately affect normal operations at it’s casino properties. Caesars indicated that the restructuring plan would transform it into a real-estate investment trust. The report also says a group of creditors tried to force the unit into an involuntary Chapter 11 petition on Monday.