This weekend's match at the Millennium Stadium will be a special one for one particular person, regardless of the score.
One of the sights of the match will be the leading out of Shenkin the goat -- the mascot of the Royal Welsh.
But now, his handler is handing over the reins - after three decades in the job.
Nicola Hendy has been to meet them both.
More top news
Wales reached their first ever semi-final of a major tournament with a magnificent 3-1 victory over Belgium in Lille.
There'll be clear spells overnight which means temperatures will fall. Setting us up for a dry start to the weekend, but it won't last!
Watch the men who have been making history by taking Wales to the quarter-finals of the European Championships.