The International Cricket Council has appointed Marc Portus to undertake initial bio-mechanical analysis of Harbhajan Singh's bowling action.
Portus will review all relevant match and bio-mechanical footage as well as any other relevant information on Harbhajan, whose action was reported for the second time in three months in March this year.
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The Australian Institute of Sport bio-mechanist is expected to take two weeks to complete the project, an ICC statement said on Wednesday.
Portus will have to determine if there was a change in the action used by the Indian off-spinner by comparing the previous bio-mechanical analyses of his action with the action used during the Test that prompted the latest report from the match officials.
ICC Chief Executive Malcolm Speed said the ready availability of footage of Harbhajan's action from previous bio-mechanical analyses in both England and Australia as well as recent match footage provides Portus with the ability to start his investigation by reviewing the existing material on the bowler's action.
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