yup looks like Stoinis will be the one (if MMarsh isn't right in a couple od days or so but Boof thinks he will be ok)
https://www.cricket.com.au/news/mit...ren-lehmann-australia-south-africa/2018-03-13
Marsh, who also forfeited 20 per cent of his match fee for swearing at Kagiso Rabada after the South Africa fast bowler dismissed him yesterday, has been a pivotal player since he returned to the Australia Test line-up in the middle of this summer's Ashes win over England.
Since that Test at the WACA Ground in Perth, only skipper Steve Smith has scored more Test runs for his country than Marsh's 471 (at an average of 67.29) and the allrounder is also his team's second-most productive batter on the current tour behind opener David Warner.
He has also claimed three valuable wickets at a cost of 15.67 runs each in the current campaign and, given the absence of a genuine allrounder in the Proteas' team, he stands as a crucial point of difference in a series characterised by reverse-swing bowling and middle-order batting collapses.
"He's close to (having) made our most runs," Lehmann said of Marsh's importance to Australia's team balance and output.
"We haven't had a lot of runs in the series so far, but he's looking as good as anyone at the moment.
"(With the) ball he was important for us with those couple wickets late on day two (at Port Elizabeth)."
Marsh also claimed the scalp of South Africa century-maker Aiden Markram at a vital stage of the opening Test at Durban which the tourists won by 118 runs, and his absence would leave a significant hole in Australia's starting XI.
Should he remain under an injury cloud as the third Test draws nearer, Western Australia allrounder (and ODI capped) Marcus Stoinis looms as the likely ‘cover player' given his dual capabilities as a middle-order batter and seam bowler.
Stoinis, who has shown impressive bowling form since returning from international duties to the JLT Sheffield Shield competition last month but has not posted a first-class half-century this summer, is in Adelaide with his WA teammates preparing for the Shield match against South Australia that starts tomorrow