The European Union will reach a deal with Britain on Brexit in November if it does not do so this month, European Commission President Jean-Claude Juncker told Austrian newspapers.

Juncker, whose optimism was echoed in comments Saturday by European Council President Donald Tusk, said that the potential for a rapprochement has grown in the last few days, confirming what diplomatic sources have said.

EU Brexit negotiators believe a deal with Britain on leaving the bloc is "very close," the sources said, in a sign a compromise on the most contentious issue — the future Irish border — might be in the making, although details were scarce.