Several players have played for both clubs, such as Loren Juarros,[68] Joseba Etxeberria[69] and Iban Zubiaurre[70] whose direct transfers from Real to Athletic caused deep resentment and a cooling of the fraternal relationship between the clubs[18] (and in the case of the latter, a lawsuit regarding the legality of the deal).[71][72] By contrast, Bittor Alkiza's move was better received, and he later returned to San Sebastián.[73] Others who made the move, almost all from Real to Athletic, include Luciano Iturrino, David Billabona, Andoni Imaz, Igor Gabilondo, Iñigo Díaz de Cerio, Xabier Castillo, Gorka Elustondo[74] and Mikel Balenziaga.[68][75][76][77]