It's a doddle, this Brexit lark;
https://www.theguardian.com/world/2018/oct/26/russia-brexit-liam-fox-wto-plan-uk
"
Russia is among 20 countries that are looking to squeeze a commercial advantage from Brexit after blocking an attempt by the international trade secretary, Liam Fox, to fast-track a World Trade Organization deal on the UK’s terms of trade with the world.
Whitehall is now facing “up to two dozen” different negotiations with countries over how much meat and dairy produce will be permitted into the British market and what tariffs the UK will set on imports."
".....in terms of the bilateral free trade deals that we hope to get with Australia, New Zealand and the US, these could be delayed while we haggle over the numbers. It’s a complicated discussion and it could easily take a couple of years to sort out and that means it would be three or four years before we could implement bilaterals, so it is likely to introduce delays.”