Shabbir has been serving a 12-month ban from the International Cricket Council (ICC) since last December for having an illegal bowling action.
New ball bowlers Akhtar and Asif received two- and one-year bans respectively yesterday from a Pakistan Cricket Board drugs tribunal for testing positive for the banned steroid nandrolone outside competition.
''Obviously when you lose two key bowlers like Shoaib and Asif it does affect the team,'' Saleem Altaf, director cricket operations, told Reuters via telephone from India.
''Which is why we will be sending Shabbir to Australia on Nov. 20 for biomechanic tests on his bowling action.'' Shabbir has been reported three times for his action, which can be reviewed again once the ban ends next month, Altaf added.
Shabbir has 51 wickets from 10 tests, and grabbed 18 wickets in his last three tests against England and West Indies before being banned.
''We have done a lot of work on Shabbir's action this year and there is definite improvement. Hopefully he will also clear the biomechanical tests under the supervision of experts in Australia,'' Altaf said.
''If he is available with a modified action for the tour of South Africa and the World Cup it would be a big boost for the team.'' Akhtar and Asif are expected to appeal against the bans in the next few days. Akhtar's personal doctor Tauseef Razzak said he was already consulting lawyers to file an appeal.
Asif has also sought advice from the PCB on filing an appeal, an official said.
Pakistani selectors have also recalled fast bowler Mohammad Sami for the tour opener against West Indies from Nov. 8 in Lahore.