Storm clouds make an appearance, Australia v Pakistan, 2nd Test, 4th day, Melbourne, December 29, 2016© Cricket Australia/Getty Images
Steven Smith raises his bat after reaching his century, after dismissing the batsman, Australia v Pakistan, 2nd Test, 4th day, Melbourne, December 29, 2016© Getty Images
Matthew Wade hits a pull shot straight onto Azhar Ali's helmet at short leg, after dismissing the batsman, Australia v Pakistan, 2nd Test, 4th day, Melbourne, December 29, 2016© Getty Images