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A no-deal Brexit on October 31 is poised to affect many walks of life... and Welsh rugby might well be no different.

Because if new Prime Minister Boris Johnson takes the UK out of Europe on Halloween with no deal, it could have huge ramifications for the game in Wales.

In cricket Kolpak players could be gone from the county game by 2021 in the event of a no-deal Brexit, according to the England and Wales Board.

Currently citizens of EU countries are allowed to work in any other EU country.

And the Kolpak rule means citizens of countries that are part of European Union Association Agreements, which are free trade treaties between the EU and other countries, also have the same right.

South Africa is part of a deal called the Cotonou Agreement while the likes of Samoa, Fiji and Tonga have EU treaties.

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But those employment rulings, would both be directly affected by the UK’s withdrawal from the European Union.

In England it's being reported the RFU regulations for the 2019/20 season will be published on August 1.

And it's set to retain a clause from last season that stipulates if a player’s status were to alter mid-season from ‘non-foreign’ to ‘foreign’ due to the UK leaving the EU without a deal, their statuses as ‘non-foreign’ would remain until the end of the coming season.

With the likes of Gloucester and Sale Sharks having invested heavily in South Africans in recent seasons, the same could be said of Wales' four regional sides.

The Dragons, Cardiff Blues, Scarlets and Ospreys have players on their books from non-EU countries, such as South Africa, Australia, New Zealand, Georgia, Moldova and the Pacific Island nations, who could be caught up in the no-deal Brexit red-tape.

It could mean the likes of Brandon Nansen at the Dragons, Blues stars Dimitri Arhip, Rey Lee-Lo and Willis Halaholo, Scarlets players such as Keiron Fonotia, and Paul Asquith alongside Shaun Venter, Gheorghe Gajion and Tom Botha at the Ospreys being affected.

(Image: Huw Evans Agency)

Current Guinness PRO14 guidelines state on non-European players that 'a maximum of two are permitted in a team’s match squad'.

It's currently unclear how the league would react to a no-deal Brexit, should it come to pass.

European Professional Club Rugby, who oversee the Heineken Champions and Challenge Cups, have the same limit on ‘foreign’ players, although in their regulations this is stated as a maximum of two ‘non-European players’.

It means cricket may not be the only sport to be hit by a no-deal Brexit on October 31.