Gary Neville & Jamie Carragher quiz Howard Webb on yellow cards and discipline

Jamie Carragher and Gary Neville quizzed Howard Webb on a referee's approach to yellow cards, and how best to discipline players in big matches. Click to watch Neville discusses headbutts with Howard Webb:    • Gary Neville asks Howard Webb "What makes ...   Subscribe to Sky Sports Official for the best videos from Sky Sports!    / skysportsofficial   About Sky Sports Official: Sky Sports Official is the home of Sky Sports on YouTube, bringing you the best sports videos from around the world. From amazing pieces of action and 'How To' tutorials from Game Changers with some of the biggest names in sport, (including David Beckham, Andy Murray and Jessica Ennis-Hill) to the latest news, features, documentaries from our live and magazine shows, including Soccer AM, The Fantasy Football Club, Game Changers, Monday Night Football and Super Sunday. Follow us on Twitter:   / skysports   and   / skysportsnews   Like us on Facebook:   / skysports   For more great content head to www.skysports.com