Manchester City fans have unveiled a huge banner taking a swipe at UEFA as the club prepares to appeal its Champions League ban.The Blues were hit with a two year ban from all European competition in a bombshell announcement by the continent's football governing body in February for alleged breaches of financial fair play (FFP) rules.The club strenuously deny any wrongdoing and say they are confident the ban will be overturned when the case is heard in front of the independent Court of Arbitration for Sport (CAS).The case is due to be heard on Monday and is expected to last three days.After the news of the ban was announced, City fans' collective the 1894 Group, who organise regular displays at the Etihad, began crowd-funding for a display.