Michael Cheika has made 14 changes to the Wallabies side ahead of their second pool match of the Rugby World Cup, with Dean Mumm set to become the 84th player to captain Australia. With just four days to recover from Australia's 28-13 victory over Fiji, Cheika has taken the opportunity to rest a number of key players ahead of crucial matches against England and Wales. “It’s an incredible honour to lead this group of players,” said Mumm. “Stephen Moore, Michael Hooper and Adam Ashley-Cooper have done an outstanding job as a leadership team this season and I’m extremely grateful to have the opportunity to contribute to what they’ve created and lead the team on Sunday.” “This is a really important match in our campaign and four players are getting the opportunity to play in their first Rugby World Cup match, so it is a significant occasion for those players and a chance for us to build on the performance against Fiji.” Wallabies Head Coach Michael Cheika said he wan