Australia's Michael Clarke (captain) leaves the field as he continues his terrible form, edging England's Stuart Broad losing his wicket caught out by England's Alastair Cook (Captain) for 10 runs England v Australia - Ashes Series 2015 - 4th Investec Test Match - Day 1 - Trent Bridge - Nottingham - 06/08/2015 Mandatory Credit: ANDREW FOSKER / Seconds Left