However, there is a “real chance” of clinching a deal in February if Prime Minister David Cameron is prepared to compromise, Reuters quoted Tusk as saying.
He made the statement ahead of a dinner on Thursday at which EU leaders are due to discuss British demands for reform of the bloc.
If Cameron “persuades leaders tonight that we can work together to find solutions regarding all four baskets, then we will have a real chance to strike a deal,” said Tusk, who will chair the summit.
