Jean-Claude Juncker has insisted he will not try and block British efforts to regain powers from Brussels despite David Cameron's failed bid to prevent him becoming European Commission president.
Mr Juncker said any proposals from Westminster would be "taken under consideration" and stressed that he wants the UK to stay in the EU, the Daily Telegraph reports, citing a leaked recording.
He reportedly told MEPs at a Brussels meeting: "I would like Britain to stay as an active constructive member of the European Union. If Britain puts forward a proposal it will be taken under consideration.
"I don't want the EU without Britain. Britain is an essential element of policy making in Europe because the British are a common sense and down to earth people."