In this week's episode of the League Express Podcast, Editor Martyn Sadler and Host Jake Kearnan are joined by Former France Rugby Union Defensive Coach David Ellis to discuss the importance of teaching kids how to tackle from a young age to reduce the risk of concussion. They also discuss David's playing and coaching career which saw him win multiple six-nations titles with France and reach the 2011 World Cup Final as a coach. They also preview this weekend's Challenge Cup fixtures.