David Warner is caught at first slip, Australia v New Zealand, second Test, Hobart, 2nd day, December 10, 2011© AFP
Zaheer Khan watches a video of his bowling action on a computer, Rajkot, December 9, 2011© Hindustan Times/Getty Images
Chris Martin is bowled first ball, Australia v New Zealand, 2nd Test, Hobart, 1st day, December 9, 2011© AFP