BUENOS AIRES, Oct 25 (Reuters) - Former France striker David Trezeguet is set to realise a boyhood dream when he lines up for River Plate against Boca Juniors in one of the world's great soccer derbies on Sunday. Playing the "Superclasico", Trezeguet takes another step in a remarkable denouement to a career that brought him World Cup and European Championship winners' medals. Six months after signing for River, he helped the team he supported growing up in Buenos Aires win the Primera B Nacional (second division) championship in June, ending the trauma of their relegation a year earlier. ... More...