Mike Ashley's Sports Direct has fired off a legal challenge against Debenhams rescue restructure, which was approved by creditors last month. Debenhams plans to close at least 22 stores and force through rent cuts on many others under the restructure. However, landlords and other creditors, such as clothing suppliers, approved the closures which form part of two company voluntary arrangement (CVA) deals that Debenhams' new owners have said are necessary to prevent the business collapsing. A CVA is a type of insolvency procedure and Debenhams received 95% support for one plan and 97% for the other.