The sides met twice in France last year, the Scots defeating the Pacific Islanders 36-33 in the final group game in Nantes but then losing 33-24 in a play-off for ninth place, although previous results have little bearing on the current competition because of the change from year to year in the squads.
Scotland suffered physically and psychologically from their 61-5 defeat to South Africa in the opening round on Monday but can take credit for having held the powerful Baby Boks to a 14-5 scoreline at half-time, scoring first through a remarkable try by winger Jamie Farndale.
Samoa lost 48-12 to New Zealand in their opening match and will have been lifted by their performance against the host nation, notably the ability of their heavyweight pack to score a pushover try
The Scotland v Samoa match will be overshadowed in Pool C by the clash between South Africa and New Zealand, a game that could determine the championship. Elsewhere, defending champions England take on Australia in Pool A while Wales, last year's runners-up, face Ireland in Pool B.