He missed the IPL too due to a shoulder injury.
The scan reports of Rabada's back have been sent to CSA.
Selectors have time until May 23 to change the World Cup squad.
She played for South Africa in three ODIs and one T20I.
After a thumping display in One-Day Cup, Markram caught the eye of former SA wicketkeeper Boucher.
Faf du Plessis also backs him at the helm.
His replacement and the new captain is yet to be named.
PCB chairman Ehsaan Mani's trip to the South Africa has been deemed successful and is raising the fans' expectations.
The auctions have been traditionally held in Bangalore for the last 11 seasons.
However, Cricket South Africa haven't been able to secure a title sponsor yet.