Celtic have always been linked to signing some of the best players in Europe over the decades. There have been numerous stories about how players like Rivaldo were once linked to joining Celtic back in the Martin O’Neill era. David Ginola was another who Tommy Burns tried to sign for Celtic before the Frenchman decided to join Newcastle United instead. The point is, that some of the world’s best players have been tempted with a move to Paradise and former England international, Steve Bull, is another who now admits he had the opportunity to pull on the famous green and white Hoops. Steve Bull’…