MPs are expected to debate on Brexit tomorrow with the intention of holding a third vote on Theresa May's Brexit deal. 

Andrea Leadsom, the leader of the Commons, published the business for the week ahead with a debate on the motion relating to the UK's Withdrawal from the European Union scheduled for tomorrow. 

Any motion brought forward tomorrow will need to coincide with any ruling of the speaker. 

READ MORE: How did European media react to PM's promise to step down 

The Prime Minister must secure Commons approval for her deal by 11pm on Friday if the UK is to be given an automatic delay to May 22 of the date on which it leaves the EU.

Friday's debate, on a day when the Commons was not due to be sitting, is dependent on a business motion being moved and passed by the House later on Thursday, and on Speaker John Bercow deeming that the Government's proposal is in line with parliamentary rules which ban the same motion being repeatedly tabled.

Ms Leadsom also signalled that all or part of the Commons' Easter recess - due to start on April 4 - may be cancelled. 

There is speculation that the government may only vote on the withdrawal agreement, instead of on the withdrawal agreement and the political declaration.

READ MORE: LIVE: Nicola Sturgeon takes questions from opposition in FMQs 

The agreement is the legally-binding treaty covering the backstop, the £39bn payment to the EU and citizens’ rights, while the political declaration is the outline of the future trading deal that is not legally binding.