[Wizard.]

He is notorious for his withering assessments of the bungling young competitors who appear on The Apprentice.

But Lord Sugar, the supposed master of business strategy, has just made a major gaffe of his own – by unwittingly revealing the winner of the current series on Twitter almost three weeks before the pre-recorded final airs.

Everyone who appears on the BBC One reality show has to sign a strict gagging contract preventing them from disclosing what happens, which makes his slip all the more embarrassing.

Lord Sugar spoiled the ending of this year's series by following this year's winner on Twitter +4
Lord Sugar spoiled the ending of this year's series by following this year's winner on Twitter
The spoiler was spotted by fans of the show who noticed that the tycoon had started to follow the Twitter feed of just one of the contestants on this series.

And of all the business hopefuls who pass through his TV boardroom, Lord Sugar only ever follows the winner.

This evening he promised to ‘unfollow’ the candidate after The Mail on Sunday drew his attention to the error. We are not revealing who it is to avoid spoiling the show for its 5 million viewers.

Apperantly it was

Spoiler:

Grainne