Needing a win to guarantee topping the group, Australia will be unchanged at Old Trafford.
South Africa opener Hashim Amla is out with a knee injury — reportedly sustained playing football before practice on Friday — and was replaced by left-arm spin bowler Tabraiz Shamsi. Aiden Markram will move to the top of the order and partner Quinton de Kock.
There have been four games in Manchester so far, and all have been won by the team batting first.
Lineups:
Australia: Aaron Finch (captain), David Warner, Usman Khawaja, Steve Smith, Glenn Maxwell, Marcus Stoinis, Alex Carey, Pat Cummins, Mitchell Starc, Jason Behrendorff, Nathan Lyon.
South Africa: Quinton de Kock, Aiden Markram, Faf du Plessis (captain), Rassie van der Dussen, JP Duminy, Dwaine Pretorius, Andile Phehlukwayo, Chris Morris, Kagiso Rabada, Imran Tahir, Tabraiz Shamsi.