Wales have 2019 in mind as Warren Gatland picks side to face Australia

• Our whole focus this week has been about the next two years, says coach• Wallabies pick 13 of the XV who started last month’s win over All BlacksAustralia are used to facing backs the size of old-fashioned second rows when they face Wales but there will be a role reversal at the Principality Stadium on Saturday. The Wallabies have opted for size in midfield in the form of two Fiji-born players while the home side are deploying a fly-half at inside-centre.Last year Wales had George North, Jamie Roberts and Alex Cuthbert in their three-quarter line against Australia, who were all 6ft 4in or mo…