The Wales team will be announced later as they attempt to right the wrongs of their first Test against South Africa.
The five-try 38-16 defeat at Kings Park in Durban has led to plenty of soul-searching within the Welsh camp, after their confidence in the build-up was destroyed by their hosts.
But there remains the chance to put matters right when the second Test takes place in Nelspruit on Saturday.
More top news
Low cloud will bring murky conditions with extensive hill fog.
The team, which is manned by volunteers, will operate out of Pontardawe Fire Station in partnership with Mid and West Wales Fire Service.
Dan Biggar has no doubt that Wales remain flrmly in the Six Nations title mix ahead of next Saturday's clash against Scotland.