Australia will be committed to a vow of silence about Jonathan Trott’s troubles, when Ashes hostilities resume in next week’s second Test.u00a0Coach Darren Lehmann made it clear on Saturday that, whatever other topics are considered fair game for ‘sledging’ in Adelaide, his players will not be mentioning the subject of Trott’s departure from England’s Ashes tour with a stress-related illness.

Jonathan Trott