While Samoa will start this match as favourites, Namibia showed in their opening match against Fiji that they can hold their own against higher ranked teams.
Despite losing that match 49-25, Namibia didn't disgrace themselves but they will have to improve considerably if they want to beat Samoa.
Captain Jacques Burger is an experienced campaigner who gives everything for the cause but even he will admit that this is a daunting task against a Samoan side whose players are regular starters for sides in some of the world's top competitions.
Namibia's coach Johan Diergaardt has made three changes to his starting XV.
The most interesting of those being the introduction of PJ van Lill at number eight for Jacques Nieuwenhuis, who shifts to the side of the scrum.
This means that Tinus du Plessis, who started on the flank against Fiji, is dropped from the 22 along with wing Conrad Marais, who is replaced by Llewellyn Winkler.
In the other change, Henk Franken earns his first cap at the expense of Nico Esterhuyse who moves to the bench.
"The number 8 (van Lill) that is in now is an excellent ball carrier, and the wing (Winkler) he (Diergaardt) brought in is really quick and can use his speed. On the kick chases we want to force (Samoa)," said Nieuwenhuis.
Samoa boast a talented bunch of players and are serious contenders to win this pool and qualify for the quarter-finals.
They have always relied on their physicality to win them matches so don't expect them to deviate from this plan.
Although Namibia did well against Fiji in the physical battle they know they will not be able to do the same against the Samoans who thrive on this aspect of the game.
Samoa have picked a powerful line-up, yet they can still afford to leave front-rowers Census Johnston and Ti'i Paulo, who are first choice-players at Toulouse and Clermont-Auvergne respectively, on the bench.
Samoa's players will be highly-motivated after missing the World Cup's opening round of fixtures and captain and hooker Mahonri Schwalger said the team can't wait to get stuck into the Namibians.
"Some of the guys have been watching a lot of rugby the last couple of days, and they're pretty keen to get out there," said Schwalger.
While they are excited about Wednesday's match Schwalger denied they are having to tone down training or hold anyone back
"The boys know what they have to do," he said.
"They just want to go out and execute."
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