Although the final 11 will only be announced at the toss on Thursday morning, the pair spoke fondly of what a debut would mean to them.
“The thought that I could be making my debut for South Africa is exciting but also nerve-wracking,” Shezi said on Wednesday.
“It’s not often that people get to live their dreams and playing for South Africa has been a dream of mine since I can remember. Every level of cricket that I have played has prepared me for where I am today, and if I make my debut it will almost be that last piece of the puzzle.
Rossouw and Shezi are products of Cricket SA’s youth and senior cricket pipeline.
Shezi represented the South Africa under-19s at the World Cup in Sri Lanka in 2006, while Rossouw was part of the South Africa under-19 squad that reached the final of the World Cup in 2008.
The pair recently represented South Africa ‘A’ on their tour of Australia earlier this month, and made telling performances with bat and ball.
“I haven’t even thought about the World Cup, I just want to do well on this tour,” Rossouw said.
“It doesn’t help that I’m thinking of the World Cup and I don’t do well when I’m selected to play here. I’m taking it one game at a time.
“My dad always says that if you score enough runs they have to select you. I’m glad that I scored the runs in Australia and got a call-up to the squad, I’m happy and proud to be where I am.”
South Africa lead the series 2-0.
Following Thursday’s final ODI, South Africa, Zimbabwe and Australia will battle it out in a triangular series, starting next week.