The UK is engaged in an "internal battle" over its Brexit position, the European Parliament's negotiator has said.
Talks are not going well and Britain's position is not clear enough, Guy Verhofstadt added.
He warned the outcome needed to be positive for both sides as the UK and EU gear up for a fourth round of negotiations next week following Theresa May's major speech in Florence on Friday.
Mr Verhofstadt said: "We feel, hopefully I am wrong, that we don't receive always a clear UK position.
"There is still internal battle in UK about what is their position, what they want.
"For us there was not a problem, there was a single market, a customs union, no one was complaining about that, but by leaving all these points come back."