Paper headlines: Crucial week for May and return of I'm A Celeb

The morning's papers are dominated by Brexit and the fate of the prime minister.

The Daily Telegraph says Theresa May will make clear to five cabinet Brexiteers that she does not intend to alter the draft agreement with the EU.

Writing in the paper, one of the five - Liam Fox - says the prime minister "deserves support". But he refuses to explicitly back the deal, saying many - including Mrs May - have reservations about some of the issues.

Writing in his weekly column in the paper, Boris Johnson dismisses claims that imperfections in the agreement can be remedied in the next stage of the talks. He says it cannot be right that the UK gives the EU the right to veto its departure from the customs union.

The Sun says two more cabinet ministers could resign this week.

It believes that Andrea Leadsom and Penny Mordaunt may stand down if the UK is locked into the EU customs union for years to come.

The Times carries an interview with a former Conservative chief whip, Andrew Mitchell, who warns his colleagues against "hunting down" Mrs May.

He compares her situation to the ousting of Margaret Thatcher in 1990 and says any move to depose her would do the party "untold damage".

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The paper also reports that a number of Tory MPs have turned on the former Brexit Secretary Dominic Raab, accusing him of plotting to unseat her.

The Daily Express says Mrs May will go on the offensive by defying her critics in the Tory party.

It reports that she will say her Brexit deal will give the government the power to end the open door to EU migrants and, in the words of its front page headline, "give us back our borders".

The Daily Mirror reports that the Army has been put on standby to respond to any chaos in the event of a no-deal Brexit.

The paper says the military may be called on to quell civil unrest, ease traffic jams at ports, and fly in medicines.

The Financial Times highlights the EU's offer to keep the transition period running until the end of 2022 - two years longer than currently proposed. It says the move could prolong freedom of movement and the payment of large sums to Brussels beyond the next general election.

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The Daily Mail reports on how a woman with a fake degree was allowed to work in the NHS for 22 years.

It says the woman, who is 56, claimed to have a qualification in New Zealand when she came to work in the UK in 1992 - when in fact she had dropped out of her first year of higher education.

The Mail says that, as a result of the revelations, background checks are being urgently carried out on 3,000 foreign doctors working in the health service.

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And the Times reports on remarks made by England's chief medical officer, Dame Sally Davies, who has told people to buy organic or high-welfare meat, to help combat the rise of antibiotic-resistant bugs.

Dame Sally Davies wants consumers to pressure the food industry into reducing the amount of antibiotics used in animals - to avoid a situation where the drugs stop working in humans.