Simon Property Group Inc. has filed papers in U.S. bankruptcy court trying to block Ascena Retail Group's Chapter 11 reorganization out of a fear that it will allow Sycamore Partners, which bought several Ascena brands out of bankruptcy, to close more stores, weakening a master lease agreement the mall operator originally negotiated with Ascena. An affiliate of private equity firm Sycamore bought Ascena brands Ann Taylor, Lane Bryant, Loft and Lou & Grey in December for $540 million. The sale...