Nick Cummins chances of making an Olympic appearance for Australia has become a little slimmer after the announcement of a trimmed down squad for a training camp in Darwin.
The 28-year-old Western Force back, who is one of five injured players, has not been considered for the 16-man camp, but Sevens coach Andy Friend said anyone not travelling would be up against it to crack the squad.
The former Wallabies wing has been battling an ongoing knee problem that has limited his output.
Greg Jeloudev (foot), Henry Speight (knee), Pama Fou (knee) and Tom Lucas (knee) are the other unavailable players.
Star playmaker Lewis Holland will return from injury in the camp, with Tom Cusack and Nick Malouf also continuing their comebacks.
Friend admits that it would be very difficult to push for Olympic selection without going to Darwin, but had confidence that those left behind would still be training hard in case of injuries.
"I've made it clear to the group that it'll be tough to make the squad for Rio if they haven’t been selected for Darwin," Friend said.
"However, I have had a commitment from the non-travelling players that they will continue to work hard back in Sydney and maintain the high standards that this program has set.
"As we have found to our detriment this past week, injuries can happen at any time so we need the entire group to be ready to step into the breach at short notice."
The former Harlequins full-back said trial games against the development squad last week had been instructive.
"I was happy with the hit-out the boys had last week against the Australian Development squad. We got exactly what we needed to out of the six games and we have a clear idea on the areas we need to sharpen up on," Friend added.
"I was delighted to see Tom [Cusack] and Nick [Malouf] come through the games unscathed and they'll add plenty to our forward options."
Stephan Van Der Walt and Frank Winterstein are two regular World Series players who have missed out, with a plenitude of forwards for Friend to chose from.
Australia’s final 12-man squad to be announced on July 14 in Sydney.
Australia Sevens Training squad: Cameron Clark, Tom Cusack, Allan Fa'alava'au, Sam Figg, Con Foley, Lewis Holland, Henry Hutchison, Ed Jenkins, Boyd Killingworth, Tom Kingston, Nick Malouf, Pat McCutcheon, Sam Myers, Jesse Parahi, John Porch, James Stannard.