BARCELONA Barcelona will try to end one of the worst crises in club history with Ronald Koeman as its coach. Barcelona officially announced a deal with Koeman on Wednesday, a day after club president Josep Bartomeu had said the Dutchman accepted the coaching offer and only details needed to be sorted out. Barcelona said Koeman will be officially introduced later Wednesday. Koeman had been coaching the Dutch national team since 2018, and previously coached in the Premier League, the Spanish league, the Dutch league and the Portuguese league. The 57-year-old Koeman began his coaching career as an assistant with Barcelona in the late 1990s.