Barcelona's coach Josep Guardiola (C), B

Barcelona's coach Josep Guardiola (C), Barcelona's president Sandro Rosell (L) and Barcelona's sports director Andoni Zabizarreta (R) take part in a press conference in Barcelona on April 27, 2012. Pep Guardiola announced today he is leaving the club at the end of the season, ending a four-year reign over one of the greatest eras in club football. "This is not a very easy situation for me," the 41-year-old Guardiola told a news conference where the club also revealed that his assistant coach Tito Vilanova will take over. AFP PHOTO / LLUIS GENE (Photo credit should read LLUIS GENE/AFP/GettyImages)