Namibia are the Renford Rejects of the oval-shaped world. Turn up every week, pull on their jerseys with pride, then suffer a hammering. The lowest-ranked team in the tournament - which has a pool of just 1,080 blokes to choose from - has never tasted victory at a Rugby World Cup.

And captain Jacques Burger - the Saracens tackle-machine - is desperate to quench his international thirst against Tonga today.

"It remains our goal to win – it's not impossible,” he says. “We know how tough Tonga are as a rugby side. We want to win. Not to compete, but to win."

Hello! And welcome to Match 21 of the Rugby World Cup. Match 21? Doesn't time fly when you're having fun.

So what the bejesus has plankton got to do with hard hits, tear-inducing tackles and solid scrums? Well, because today we are going to see if Namibia - described as the plankton of this tournament by my esteemed colleague Ben Dirs - can earn their first World Cup win.

Their chances? Some might say microscopic.

Plankton (pronunciation: plaŋ(k)t(ə)n) noun

Small organisms that float or drift in great numbers in bodies of salt or fresh water. Plankton is a primary food source for many animals and consists of bacteria, protozoans, certain algae, tiny crustaceans such as copepods, and many other organisms.

I know what you're asking yourself. "Have I just clicked on a GCSE science revision page?!"

No you haven't. Wanting the Rugby World Cup? Don't worry, you're in the right place.