Wallabies wary of former coach Michael Cheika being 'asset' to Argentina

Cheika helped orchestrate Argentina’s win over All BlacksHanigan warns of ex-coach’s influence against AustraliaFormer Wallabies coach Michael Cheika will give Argentina a “leg up” against the hosts in Saturday’s Tri-Nations clash in Newcastle when coaching from the Pumas’ box, Australia lock Ned Hanigan says.Cheika, who said in May he could never coach against Australia, took a consultancy role with the Pumas in September and helped guide Mario Ledesma’s side to their breakthrough 25-15 win over the All Blacks in Sydney on Saturday. Related: Argentina's All Blacks upset presents Wallabies wit…