Against Scotland, it was Sione Tuipulotu. Now Australia must face a double threat from a couple of other would-be Wallabies who bounded away after Finlay Bealham and Mack Hansen were both selected for Ireland for the Dublin showdown.
The big news in Ireland's selection for Saturday's clash (Sunday AEDT) at Lansdowne Road was coach Andy Farrell's decision to stick with the exceptional young fly-half Sam Prendergast for the final match of the Wallabies' tour after he had starred in his maiden Test in last weekend's 52-17 win over Fiji.
But after Melbourne's Tuipulotu, the former Australia Under-20 international, tormented Joe Schmidt's side in Scotland's win at Murrayfield, there's also a couple of fresh Australian threats to concern him in the shape of Canberra pair Mack Hansen and Finlay Bealham.