Former England international Martin Keown addresses the "woeful" defending at the Confederations Cup and demonstrates what defenders are doing wrong.

Along with the help of BBC Sport's Jason Mohammad, Keown shows how he would cope with marking some of the world's best defenders.

Watch hosts Brazil take on Italy in their final Group A game live on BBC Three and bbc.co.uk/sport from 19:30 BST and Japan face on Mexico on the Red Button and bbc.co.uk/sport from 19:45 BST.