A no-confidence motion in the prime minister tabled by Jeremy Corbyn will not be granted parliamentary time for debate, according to Downing Street sources, SKY News reports.
Downing Street Rules out Parliament Time for Corbyn's 'Stunt' No-Confidence Motion in May
He acted after the prime minister earlier told MPs the "meaningful vote" on her agreement with Brussels will be held in the week beginning 14 January.
Mrs May previously delayed a parliamentary showdown on her Brexit deal this month after admitting she was heading for defeat.
Announcing his no-confidence motion to the House of Commons, Mr Corbyn said it was "unacceptable" that MPs will still have to wait "almost a month" to have their say on the UK's withdrawal agreement.