Brexit Secretary David Davis has told the BBC he is "pretty sure", but not "certain", that he will be able to get a free trade deal with the EU, according to BBC.
He told BBC One's Andrew Marr Show that other EU states "have a very strong interest in getting a good deal".
"I'm pretty sure, I'm not 100% sure - it's a negotiation."
But he said that if the UK was only offered a "punishment deal" then it had to be prepared to "walk away... we have to plan for that".
He also defended Theresa May as a "very good prime minister" - although said she was "under pressure".