NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates the wicket of Adam Voges of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 6: Australian captain Michael Clarke and Steven Smith reacts after dropping England captain Alastair Cook during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom.
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates taking his fifth wicket that of Michael Clarke of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Australia leave the ground at stumps during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Jonny Bairstow of England avoids a bouncer from Mitchel Johnson of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: A general view of play during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates after taking the wicket of Michael Clarke of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 6: England captain Alastair Cook and Adam Lyth run out to bat during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom.
NOTTINGHAM, ENGLAND - AUGUST 06: Australian captain Michael Clarke leads his team from the field at stumps on day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Gareth Copley/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates the wicket of Adam Voges of Australia caught by Ben Stokes for 1 run during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Joe Root of England hits out to the boundary as Peter Nevill of Australia looks on during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Mitchell Starc of Australia celebrates after taking the wicket of Alastair Cook of England during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Mark Wood of England celebrates after taking the wicket of David Warner of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Brad Haddin of Australia and Australian coach Darren Lehmann looks on during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 6: Joe Root of England hits out for six runs during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom.
NOTTINGHAM, ENGLAND - AUGUST 06: Joe Root of England hits out during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England salutes the crowd as he leaves the field after taking 8 wickets during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Gareth Copley/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Australia prepare to take to the field during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates taking his fifth wicket that of Michael Clarke of Australia alongside Steven Finn during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: A view of the Australian scorecard showing Stuart Broad of England on the screen during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Ryan Pierse/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Australian captain Michael Clarke reacts after losing the toss ahead of day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Gareth Copley/Getty Images)
NOTTINGHAM, ENGLAND - AUGUST 06: Stuart Broad of England celebrates the wicket of Mitchell Johnson of Australia during day one of the 4th Investec Ashes Test match between England and Australia at Trent Bridge on August 6, 2015 in Nottingham, United Kingdom. (Photo by Laurence Griffiths/Getty Images)