Roddick has only ever beaten Federer in two of their previous 17 meetings -- the most recent success coming in Miami last year -- and he never looked like repeating that in a match played with the Rod Laver Arena roof open following a drop in temperature which brought to an end the extreme heat policy procedures.

CNN: Superb Federer crushes Roddick in semis

As the temperature in NYC is expected to drop to 37 degrees this will be welcome relief to some.

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"So-called 'sceptics' should now drop their thoroughly discredited claims that the increase in global average temperature could be attributed to the impact of growing cities, " he said.

BBC: Global warming 'confirmed' by independent study

This is true especially when the temperature begins to drop as a pile of blankets will always be more inviting than sitting in a chilly chair.

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