Celtic star Paolo Di Canio was battered by cops with truncheons for trying to sneak into a Spandau Ballet gig, Harry Redknapp has revealed.The Italian striker has always been a massive fan of the 80s band, and went to a Spandau gig in his home city of Rome.The 52-year-old played for Celtic in 1996, the Hammers between 1999 and 2003, Sheffield Wednesday and Charlton - and went on to manage Swindon Town and Sunderland.Harry Redknapp - Di Canio’s former boss at West Ham - said the player always