Rugby History 101: the shape of the ball.

The latest 'Rugby Reloaded' investigates why the rugby ball is oval - and, as usual, the answer is not as obvious as you might think. It's a long story where technology, traditions and tournaments converged in an evolutionary process to create the oval world.

For more on the history of rugby and the other football codes, take a look at www.rugbyreloaded.com (where you can find the links for this episode) and follow me on Twitter at @collinstony