Scrumhalf rivalry reflects Pumas unity

By Rex Gowar LONDON (Reuters) - The Cubelli and Landajo who played in Argentina's win over Australia 36 years ago were on the field at the same time, unlike their sons who face the Wallabies in the Rugby World Cup semi-finals on Sunday. Tomas Cubelli and Martin Landajo share the scrumhalf duties in coach Daniel Hourcade’s side and the former looks set to get the nod at Twickenham after the latter started the 43-20 victory over Ireland in their quarter-final in Cardiff. "I have shared a lot