According to the Athletic, Barcelona are in a dire financial crisis that could see Hansi Flick unable to register nine players for the new season. Players like Vitor Roque, could miss out on La Liga registration, with the Blaugrana needing to raise up to £110 million.The Spanish giants will have to sanction sales to give their manager any room to shape the squad to his preferences with new signings. The situation seems more treacherous for Los Cules, as the likes of Ansu Fati, who are out on loan and have a big salary, return.Barcelona have well-documented financial issues and will have to raise funds to avoid player registration issues. Despite their struggles, they have maintained a respectable level domestically and in the continent, though.With stars like Brazilian wonderkid Vitor Roque, Spanish internationals Inigo Martinez and Marcus Alonso unlikely to be registered, the Blaugrana will have to sanction sales to avoid that. It remains to be seen who the Spanish giants decide to part with in this window. Hansi Flick will have a tough job ahead of him next season amidst his side's financial woes.Can Hansi Flick lead financially troubled Barcelona team to glory?The Blaugrana job presents Hansi Flick the toughest challenge of his managerial career. The German came to prominence after leading Bayern Munich to their second continental treble in 2020, but things are vastly different in Catalonia.For a start, Bayern enjoy great financial stability, being one of the world's richest and most stable football clubs. Barcelona, meanwhile, are in a sorry state, struggling to register players without making sales.While they can recruit players from La Masia, the Blaugrana need new arrivals to remain competitive. Flick will have to make the tough decision of choosing which of his stars to move on ahead of a potentially difficult debut season at his new club.