Introducing Homeless World Cup: REWIND   The first ever Homeless World Cup Day is set to see a selection of classic games aired from previous Homeless World Cups featuring punditry from current and former professional footballers.   Host for the day is TV presenter David Tanner, one of the UK’s most accomplished broadcasters, who has led live coverage of UEFA Champions League football, Scotland international fixtures and Scottish domestic league and cup matches for nearly 20 years at Sky Sports….