Despite leading England to a 3-0 Ashes victory over the Australians in the summer, a Sky Sports article published earlier in the week said that Warne claimed to the media that Cook's captaincy was "boring and negative."
The England skipper, though, has stood his ground in response and has shrugged off the comments from Warne ahead of the upcoming series, as reported by BBC Sport:
It is water off a duck's back. It is something we have come to expect from him.
We wouldn't really expect anything different in terms of an Australian slagging off an Englishman. That's pretty much how it is.
The comments from Cook will only intensify the atmosphere ahead of a series that could create history for England. Victory in the series would be England's fourth in a row—something they have not achieved since 1890.
With Stuart Broad likely to be on the brunt of some hostile atmospheres too after his decision not to walk in the Trent Bridge test, the normally intense environment of an Ashes test is likely to be even hotter this winter.
Cook's decision to merely straight-bat Warne's ridiculous comments are the sign of a man who is not perturbed by pressure or mind games. Despite claims that Cook's captaincy is boring, a record of only one defeat in 16 Tests as captain is remarkable, and it justifies the decision to opt for the 28-year-old as skipper following Andrew Strauss' retirement.
It is the sort of comment that one would expect from an Australian side who are desperate to end their horror run of Ashes series. Without a series win since 2006/07—and consistent worries over Michael Clarke and his back—Australia have resorted to the traditional mind games ahead of an Ashes series.
This is nothing new, and Cook has handled it excellently.
In his first year as captain, Cook has led England to victory away in India as well as an Ashes victory to nil—two things that do not happen too often in international cricket.
Cricketers should not be judged on whether their brand of cricket is entertaining but more on their results. And Cook's results as England captain suggest the country is heading very much in the right direction.