Alastair Cook rocks back and plays a cut, Australia v England, 4th Test, 2nd day, Melbourne, December 27, 2017© Getty Images
Steven Smith and David Warner, and Joe Root and Alastair Cook have a chat between overs, Australia v England, 4th Test, 2nd day, Melbourne, December 27, 2017© Getty Images
Steven Smith was dejected after putting down a catch off Alastair Cook, Australia v England, 4th Test, 2nd day, Melbourne, December 27, 2017© Getty Images