Completing the second run that took her to fifty in Adelaide, Kapp was struck on the left arm by a throw from the outfield and couldn't continue her innings or bowl in Australia's chase. She went to hospital for scans which cleared her of a fracture.

Kapp did not train on Tuesday in what was an optional session and a South Africa spokesperson said she will be assessed again before the game at North Sydney Oval on Wednesday. South Africa need to win to stay in the ODI series and to avoid the points margin in the multi-format contest - currently 6-2 - becoming too wide to bridge.

With the blow being on her left arm, if Kapp is deemed fit to play she should be able to undertake her full role as an allrounder.

South Africa were comprehensively outplayed in the opening match in Adelaide, bundled out for 105 with collapses either side of Kapp's innings before Australia chased the runs in 19 overs. They let the immediate emotions of the loss settle before dissecting the result and retain the belief they can compete with the home side across in the one-day format.

"Definitely, I believe we can [beat Australia]," she added. "We are a strong team and we have matchwinners."

"The way our two opening bowlers started us off [in Adelaide] really set the tone for the rest of the game," she said. "We know that they are certainly not going to fall over tomorrow and no doubt [will] come [out] as they have especially during those T20s."

"With the way the bowling's going at the moment, it's been the most consistent part of my game," she said. "With the bat it's about being really clear what my role is and what the scenario needs from me. That's something I've gone away from in probably the last few months where I'm trying to hit my way out of a bit of a form slump.

"Think the way I batted in Hobart is the blueprint for me. Making sure I take a few balls at the start, knowing I can find boundaries later in my innings and I've got confidence in that, knowing I've been an attacking batter through my career."