In December 2011, Whetton was named as one of fourteen players to be on the 2012 Summer Olympics Australian men's national Olympic development squad. While this squad is not in the top twenty-eight and separate from the Olympic training coach, the Australian coach Ric Charlesworth did not rule out selecting from only the training squad, with players from the Olympic development having a chance at possibly being called up to represent Australia at the Olympics. He trained with the team from 18 January to mid-March in Perth, Western Australia. Since his debut in 2011 he has played 130 times for the Kookaburras
