[8] He would take part in a golden generation for TSS which included back-to-back GPS premierships in 2006 and 2007[9] while also being chosen to represent the Australian Schoolboys team three times in international fixtures.
[citation needed] In the 2011 Super Rugby season, Slipper was a part of the championship winning Queensland Reds side.
[citation needed] Slipper was named in the squad for the Australia A national rugby union team's two matches against England in June 2010.
[citation needed] On 12 June 2010, Slipper made his debut for the Australia national rugby union team against England at Perth.
[citation needed] On 5 September 2015, he captained the Wallabies to a 47–10 victory over the United States at Soldier Field in Chicago, as part of their preparations for the 2015 Rugby World Cup.