Sydney - Dynamic young Wallabies back Jordan Petaia has been sent home early from a training camp after picking up an injury and will miss their final World Cup warm-up Test against Samoa, officials said.
The uncapped but highly-rated 19-year-old was a surprise inclusion in Michael Cheika's 31-man squad for the tournament in Japan, starting next month.
But he tweaked a hamstring attempting a diving tackle during training in New Caledonia this week, ruling him out of the clash against Samoa in Sydney on September 7, Rugby Australia said on its website late on Wednesday.
Media reports said the injury was not serious, but it is another cruel blow for the teenager who also suffered hamstring problems days out from what would have been his Wallabies debut against Italy last November.
Petaia, who can play from the wing or outside centre, then missed much of the Super Rugby season with a foot injury, making his inclusion by Cheika a gamble.
The Queenslander is the only uncapped player in Australia's World Cup squad.
In Japan, they face a tough Pool D that includes world number one Wales, Georgia, Fiji and Uruguay. They open their campaign against Fiji in Sapporo on September 21.
Wallabies Rugby World Cup squad:
Allan Alaalatoa, Rory
Arnold, Adam Coleman, Jack Dempsey, Folau Fainga'a, Michael Hooper
(captain), Sekope Kepu, Tolu Latu, Isi Naisarani, David Pocock, Izack
Rodda, Lukhan Salakaia-Loto, Rob Simmons, Scott Sio, James Slipper,
Taniela Tupou, Jordan Uelese
Ashley-Cooper, Kurtley Beale, Bernard Foley, Will Genia, Dane
Haylett-Petty, Reece Hodge, Samu Kerevi, Marika Koroibete, Tevita
Kuridrani, Christian Lealiifano, James O'Connor, Jordan Petaia, Matt
Toomua, Nic White