Harare: An eye-catching all-round performance by Mitchell Marsh carried Australia to a 62-run victory over South Africa on Tuesday to secure their place in the triangular series final.
Marsh struck a brutal 86 not out from 51 balls to boost the Australian total to 282 for seven, and then took two key wickets as South Africa were bowled out for 220 in 44 overs.
Faf du Plessis' brilliant 126 went in vain as none of his team-mates crossed 25, with Mitchell Johnson, Glenn Maxwell and Kane Richardson joining Marsh with two wickets apiece. Victory secured Australia's participation in Saturday's final, where they should meet South Africa again.
Marsh plundered an unbeaten 86 off 51 balls, including seven sixes and three in a row off fast bowler Dale Steyn, to take his side to 282 for seven in 50 overs at the Harare Sports Club. South Africa were then bowled out for 220 in 44 overs despite 126 from Faf du Plessis who scored a second consecutive century against Australia.
Australia's win came after an embarrassing defeat on Sunday to hosts Zimbabwe and a seven-wicket loss to South Africa last Wednesday.
The Proteas would need to be heavily beaten by Zimbabwe in Thursday's final round robin game to miss out on qualifying.
Earlier, South Africa have won the toss and opted to bowl.
A couple of changes in South Africa - AB de Villiers and Morne Morkel back. Three changes for Australia -- Steven Smith, Johnson and Richardson in for Miachel Clarke, James Faulkner and Ben Cutting
Teams
Australia: 1. Aaron Finch, 2. Phillip Hughes, 3. Mitchell Marsh, 4. Steven Smith, 5. George Bailey (Capt.), 6. Glenn Maxwell, 7. Brad Haddin (wk), 8. Kane Richardson, 9. Mitchell Johnson, 10. Mitchell Starc, 11. Nathan Lyon
South Africa: 1. Hashim Amla, 2. Quinton de Kock (wk), 3. Faf du Plessis, 4. AB de Villiers (Capt.), 5. Jean-Paul Duminy, 6. David Miller, 7. Ryan McLaren, 8. Aaron Phangiso, 9. Dale Steyn, 10. Morne Morkel, 11. Imran Tahir
Brief scores
Australia - 282/7 (Marsh 86*, Hughes 85, Phangiso 2-39)
South Africa - 220 (du Plessis 126, Maxwell 2-22, Marsh 2-23, Johnson 2-30, Richardson 2-38)
Result - Australia won by 62 runs
MOM - Mitchell Marsh (Australia)