If Britain sticks to the Brexit deal it negotiated, the European Union is ready to offer it an "unprecedented partnership", the bloc's chief negotiator Michel Barnier said Thursday.
Prime Minister Theresa May met EU leaders in Brussels on Sunday to agree terms on Britain's March 29 departure from the Union, but is now struggling to sell it to her own parliament.
Some in London still hope to negotiate better trading arrangements, similar to or improvements on the accords between Brussels and Canada, Switzerland or Norway.
But Barnier, echoing language already deployed by EU Commission president Jean-Claude Junker and May herself at Sunday's summit, said: "The deal on the table is the only one, the best possible."
Addressing to the European Parliament, Barnier said the future relationship would encompass "goods, services, the digital economy, movement of citizens, transport, public contracts, energy, security and, obviously, for the stability of our continent, foreign policy."