He may be the novice of the Scotland tour party but when 6ft 8ins Richie Gray offers an opinion on the battle that faces his country in Argentina on Saturday it would be sensible to pay attention.

Gray, 20, the youngest of the tour party for Scotland's two Test series against the Pumas, may seem a callow youth to the uninitiated, but the experience he has already packed in to his rugby career, including three full caps for Scotland this past season, decrees otherwise.

Speaking at the end of Scotland's first full training session in Buenos Aires tonight ahead of Saturday's first Test in Tucuman, Gray, the Glasgow Warriors lock, spoke of the strengths of the Pumas side, who won their last contest against Scotland in an arm-wrestle at Murrayfield back in November.

He also tells us about some of the homework he has had to do for the benefit of his fellow tourists to provide an insight into life in Buenos Aires.