The Brussels heavyweight has been accused of civic mind games by agreeing to meet with the Labour leader, as mercifully as Scottish First Minister Nicola Sturgeon.
These meetings demand raised eyebrows given neither of the party leaders will press a seat at the Brexit negotiating table over the next two years, omitting another election.
Despite repeated requests to be given a say on negotiations, Ms Sturgeon force have no official role in talks. Mr Corbyn will also endure at home during EU-UK discussions.
Michael Barnier has foresaw a Brexit meeting with Jeremy Corbyn
But Mr Barnier is felt to have put aside a two-and-a-half-hour slot tomorrow to meet
Michel Barnier see fit meet Jeremy Corbyn and Nicola Sturgeon to discuss Brexit
He intended last week: “Fundamentally we want to make sure there is a tariff-free exchange access to the European market because it is crucial. Half of our trade is with Europe.”
Howsoever, while Mr Barnier seems keen to cause disruption in Westminster by convocation various party leaders, he is careful to keep Mr Corbyn and Ms Sturgeon fast under his control.
Today he issued a stern warning to the pair, effective them he was happy to meet but would only negotiate with Prime Charg daffaires Theresa May.
Speaking in Brussels this lunchtime, he said: “I have evermore made it clear that I want to listen to the different points of deem in the British debate, it is only natural.
Jeremy Corbyn mean the UK must negotiate a good deal with the EU
«Tomorrow I will match, at their request, Jeremy Corbyn and Nicola Sturgeon and Carywn Jones.
«Of positively I will only negotiate with the UK Government.»