London, Jan 6 (IANS): British Prime Minister Boris Johnson is to host European Commission President Ursula von der Leyen on Wednesday at 10 Downing Street for the first time, with a future trade deal high on their agenda.

The meeting comes after Von der Leyen said last month that both sides needed to think seriously about whether the 2020 deadline was enough to reach an agreement, reports Xinhua news agency.

Commentators warned that if no trade deal with the European Union (EU) is in place by December 31, 2020 and without extension, Britain will face major economic disruption with tariffs and quantity restrictions immediately applied to goods sold into the European single market.

Johnson has repeatedly insisted that he will not extend the transition period.

Last month, the House of Commons gave his re-worked Brexit Bill a wide support, where he added a clause to rule out any extension beyond December 31, 2020.

The House of Commons is scheduled to sit for three days this week.

Downing Street does not expect any shocks on the bill, as every Conservative politician had signed up to supporting it.

But opposition parties are expected to put forward a long list of amendments in a last-ditch bid to change it, which seems unlikely to steer Johnson off course.

In the following week, the House of Lords will debate the bill.

Given the majority it passed with in the Commons, the bill is expected to be rushed through, before receiving Royal Assent from Queen Elizabeth II.

EU member state leaders will then be expected to sign up to it to pave the way for Britain's departure from the the bloc on January 31.