Operación Grial: 12th person questioned

Spanish Guardia Cival holding drugs after dismanteling an alleged doping network in Valencia, November 24, 2009

Spanish Guardia Cival holding drugs after dismanteling an alleged doping network in Valencia, November 24, 2009 (Image credit: AFP)

Raúl Castaño, an amateur cyclist racing for Valencia Terra i Mar, has been reported by Spanish media to be the 12th person arrested and questioned by police in doping investigation Operación Grial.