All-rounder Mitchell Marsh will replace fast bowler Brett Lee in the Australia cricket squad for the one-day internationals in South Africa.
Lee underwent successful surgery in Cape Town on Monday after he was ruled out of Australia's one-day and Twenty20 fixtures in South Africa after being diagnosed with appendicitis.
Marsh, who turns 20 next Thursday, is the son of former Australia cricketer Geoff and brother of Australia batsman Shaun and is yet to make his international debut.
The all-rounder, part of Australia's side for the two Twenty20 internationals against South Africa, will now remain with the squad for the three one-day fixtures.