An Australian dog has taken out top prize at the world's biggest and oldest dog show in the UK. Yogi the seven-year-old Hungarian Vizsla beat 22,000 four-legged contenders to win Best in Show at 'Crufts' dog show. It is Yogi's 18th Best in Show win in a UK competition and he has since been hailed as Britain's greatest show dog of all time. Following the win, his handler John Thirlwell announced he now plans to retire Yogi.