Then came an exhilarating acceleration, with the next 42 scored off 29 balls, before Steyn made a stunning return with the mandatory change of ball after 34 overs.

BBC: Steyn burst destroys Bangladesh

However, in one-day internationals a mandatory ball change is now enforced after 34 overs because the white titanium dioxide dye rubs off the leather.

BBC: Pink balls set for one-day trials

Both are keen de-regulators and Mr Paterson is pushing a new " dash for gas", a policy the Committee on Climate Change says is incompatible with mandatory targets under the Climate Change Act to reduce emissions 80% by 2050.

BBC: Harrabin's Notes: Climate shuffles