Tory rebels have increased the chances of a “no deal” Brexit by giving Theresa May less time to negotiate a good deal for Britain, EU leaders have warned.

By insisting they have a “meaningful vote” on the final deal, the mutineers have weakened Mrs May’s hand because Brussels knows anything she agrees could be overturned by Parliament.

She will also have to allow time for the vote to happen, cutting short the time available for reaching a satisfactory agreement with the EU.

Together, the two factors make it less likely that she will achieve the best possible deal, EU leaders said, and if Parliament rejects what is on offer Britain will crash out of the EU without a deal.

Brussels will not renegotiate, meaning the vote will still be a “take it or leave it” choice.