"The alternative to the backstop is not necessary until the end of the implementation period which is December 2020", Barclay said, urging the European Union not to risk the future relationship in November by insisting for a resolution by day 1 of Brexit.
Mr Coveney also said the Republic of Ireland "is in no doubt what a a no-deal would mean for us", adding that it would be "damaging and hard and poses huge questions".
Brussels' chief negotiator Michel Barnier and Steve Barclay met for talks described as "serious, detailed discussions" by the Brexit Secretary on Friday.
The warning from a government spokesman comes as the Taoiseach Leo Varadkar travels to NY today, where he will hold Brexit talks with the British Prime Minister Boris Johnson.
"Doing so would be truly risky - far more unsafe than the problems caused by leaving on October 31 without a deal".
British parliament has rejected the deal May agreed with the EU.
The main objective of the Taoiseach's visit to NY is to attend the UN General Assembly, and other meetings, on the topics of climate change, sustainable development and combating online terrorism.
The British pound fell from a two-month high after the Financial Times reported Johnson had told colleagues he did not expect to reach a full "legally operable" deal next month.
"We need a dose of reality, and there is still a wide gap", he said.
Holidaymakers held in Tunisia hotel over Thomas Cook crisis
But sources said Thomas Cook presents an "unprecedented" challenge because it is a larger operator and runs package holidays. An official from Germany said, under that country's rules, it would fall to insurance companies to help get customers home.
Speaking to Radio 4's Today programme, the Irish deputy prime minister, Simon Coveney, said the gap between the two negotiating position was wide.
The British official said the NY talks would be a chance to discuss the ideas set out in the papers, which covered agri-food, customs, and manufactured goods.
European Union diplomats complain that it will be impossible for the negotiations to progress if the member states are unable to thoroughly analyse British plans for replacing the Irish backstop.
In New York, Johnson will address a breakfast meeting of British and American business leaders on Tuesday, during which he will set out his pitch for why they should invest in post-Brexit Britain.
"There is certainly a lot of commentary now and some of it is spin I think, in the context of where we are", he told the BBC.
The Telegraph said this was in line with comments Johnson reportedly made to colleagues, saying he did not expect to find a legally operable solution before the crunch talks with the European Union at its crucial council meeting starting October 17.
But in the event of a no-deal Brexit, Mr Juncker said there would have to be checks.
"I think for Britain to ask us to do that is a very unreasonable request, and it won't be the basis of a deal".
"Trade across 300 road crossings that has created a normality and a peace that is settled on the island of Ireland for the last 20 years, that now faces significant disruption,"he said. It is very damaging and very hard and poses huge questions for politics and potentially for the management of civic unrest in the context of Northern Ireland and the border question", Mr Coveney said".
The main show will air live on both coasts. "The dominance of HBO this year - they really could be setting a precedent", he said. When is the red carpet so I can watch and judge all the fashion? The Emmy Awards kick on Sunday (Sept. 22) at off at 8 p.m.
The expedition starts on the same day as global climate protests and ahead of a United Nations climate summit in NY next week. Concerns about global warming have spread far beyond the scientific community in recent years.
Anthony Rizzo homered in his surprise return from a sprained right ankle to even the score at 1 during the bottom of the third. Bez (fractured left thumb) was cleared for baseball activities and available to pinch-run with the aid of a protective mitt.
People magazine and Entertainment Weekly also have a red-carpet show, which you can watch at their respective websites. According to the show's producers , the color is meant to evoke notions of "royalty".
Climate activists demanding stronger policies gather in front of the Chancellery on September 19, 2019 in Berlin, Germany. The government's aim is to cut greenhouse gas emissions by 55% by 2030, in comparison with 1990 levels.
However, there was no question over Harry Kane's 29th minute strike as he fired past Kasper Schmeichel to give Spurs the lead. Asked what his reaction to City's win had been, Liverpool manager Klopp said: "I wanted to see the goals.
Marc Siegel on how Novartis announced that it wouldn't raise prices on its products in the United States for the rest of 2018. Those taking over-the-counter (OTC) ranitidine could switch to other OTC heartburn medicines.
The people in power in the country are not doing enough to address the issues of Climate Change that is right in front of us. But restricting further rise in global-temperature average hinges on global action, which has been in short supply.
A section of the Internet wasn't very impressed with Sonakshi's lack of general knowledge and shared several memes on Twitter. A user made a mockery of Sonakshi by linking to the super hit song "Yeh Galiyan Ye Chaubara" from the film "Prem Rog'".
Climate change protest in Inverness calls for action
Two lanes at the busy Kent port have been fenced off and taken over by the environmental activists amid a heavy police presence. Protesters have been told they risk arrest if they try to block the eastbound lanes giving lorries access to the ferries.
JLo défile en guest star chez Versace à Milan
La tenue de la chanteuse a suscité tellement de recherches sur Internet que Google a décidé lancer sa plateforme Google Image. Et le fameux motif tropical était lui aussi sur les manteaux, les tops ou les accessoires.