Sydney - Wallaby flank David Pocock is returning home from South Africa with an injured calf muscle that will keep him out of a sixth-straight Super Rugby match.
Pocock's Brumbies, who beat the Stormers 19-17 in Cape Town on Saturday, say the move is precautionary.
Pocock, who will be a key member of Australia's Rugby World Cup squad this year, has played only 138 minutes over three games this season.
The team hopes the 30-year-old will be fit for the Brumbies' home match against the Auckland-based Blues on May 4.
Meanwhile, the career of Australia's oldest Super Rugby player, 38-year-old Brumbies hooker Josh Mann-Rea, may be over after he injured his knee against the Stormers.
Mann-Rea is returning home and back-up hooker Connal McInerney will join the team in Buenos Aires for their next match against the Jaguares.