Brexit implementation period could go a few months either way in 2021 - Damian Green

Theresa May's effective deputy prime minister has stressed the need for flexibility in the UK's Brexit negotiations - putting him at odds with the red lines set out by Foreign Secretary Boris Johnson.

Britain's First Secretary of State Damian Green suggested that the "implementation period" after leaving the European Union could last a few months longer than the two-year period suggested by the Prime Minister.