The 34-year-old recently became an Australian citizen and is in fine form after helping Sydney to a six-wicket victory over Perth on Tuesday night.

Botha's took 1-26, a spectacular catch on the boundary before and also belted an unbeaten 30 off 19 balls to hot the winning runs in a man-of-the-match display.

"I suppose you might be a chance (of being selected for Australia), a very slim chance. As long as there's that," Botha told AAP.

"But it's up to Cricket Australia. I just need to hopefully help the Sixers win some games and if it comes my way, then great.

"It would be unbelievable.

"It's a team that I've watched for a long time. Especially growing up when South Africa did't play international cricket, Australia was my favourite team to watch.

"So to do that, I think it'll feel a little bit unreal.

"But we'll have to wait and see."