Henry Speight will go to Rio, though he won't be staying in the athlete's village, after being named as one of two shadow players for the Olympics.
Speight and Tom Kingston were on Saturday morning announced as the two injury replacements for the team, who departs on Tuesday for the August 9 competition start.
The Wallabies winger has completed a surprising comeback to even be considered as part of the extended squad, after a knee injury initially looking like it would completely end his Olympic bid.
Kingston has shown promise in his first season of Sevens and was one of those unlucky to miss out when the Rio team was announced a week ago.
Injuries have hung over parts of the Sevens squad and coach Andy Friend was quick to iterate that players should be approaching the Rio countdown as if they were all still in the mix.
When the 12-man Olympic team was announced last week, there was still question marks over the progress of forward Nick Malouf but he has continued his miracle return as the squad counts down the days to departure.
The men will go to a pre-camp when they leave next week, readying themselves for a maiden Olympic campaign.