There are different sizes depending on what age-level rugby players are competing in
Taking Part
Explained: Why a rugby ball is that shape?
Rugby balls are not ball shaped, so how did they get to be the shape they are - and why, exactly, are they still called balls?
Six Nations Bonus Points Explained
Six Nations bonus points – we explain how the bonus-point system works in the championship
What is a knock-on in rugby union?
What is a deliberate knock-on? And what do these incidents lead to? We run through this area of the oval-ball game
Why is a Garryowen in rugby called a Garryowen?
Also known as an 'up-and-under' or 'bomb', we dissect the high kick
What is HIA? Rugby’s Head Injury Assessment Explained
We explain the series of checks used in the Head Injury Assessment process
What is a 50:22 kick?
We explain the law on kicking from your half into opposition territory
Rugby union yellow cards: the sin bin explained
We explain what has become one of the most common terms in rugby, the sin-bin.
The attacking opportunities provided by the new lower tackle height laws
A drop in height by the defender and a need to avoid dipping late and low has changed how players attack
Scrum caps explained: What are rugby players wearing on their heads?
Plenty of players choose to wear a scrum cap for various reasons