(Adds details, quotes, byline) By Tim Hanlon BARCELONA, Jan 23 (Reuters) - Barcelona president Sandro Rosell resigned on Thursday in the aftermath of a Spanish court's decision to investigate last year's signing of Brazil forward Neymar. "There have been threats and accusations which make you consider your position including the claim of misappropriation of funds and the court case. I've always stated that we acted correctly with the Neymar transfer." Rosell told reporters on Thursday that senior vice-president Josep Maria Bartomeu would replace him as Barca chief until his presidency was due to end in two years' time. Judge Pablo Ruz on Wednesday ordered the start of a hearing to investigate Barcelona for alleged isappropriation of funds over the signing of Brazil's 2014 World Cup hope Neymar, saying Rosell could be called in person to give evidence. More...