Captaincy is all about results, says Cook

England's captain Alastair Cook waits for the presentations after England won the fourth Ashes cricket test match against Australia at the Riverside cricket ground in Chester-le-Street near Durham August 12, 2013. REUTERS/Philip Brown

SYDNEY (Reuters) - England's Alastair Cook admits Shane Warne's criticism of his captaincy raised his blood pressure a notch but is happy to let his record speak for itself going into the second Ashes series of the year.

Since the stylish batsman took the job in August last year after the unexpected retirement of Andrew Strauss, England have lost one test in 14 and triumphed in series against India, New Zealand and Australia.