Rugby positions can be confusing to say the ... The hooker will normally also be the forward who throws the ball into the lineout. Ireland's Dan Sheehan is one of the best hookers in the world.

A competitive rugby union ... The positions numbers 1-8 on the field are called the forward pack. These players are fundamental in every set play, contest the lineouts and challenge in scrums.

Five major changes have been introduced for this year's tournament as rugby chiefs attempt to speed ... Another new rule means that teams must form a line-out within 30 seconds of the assistant ...

The aim of this study was to identify peak areas of pressure in the foot during three different positions related to the rugby scrum and their association to lower limb kinematics or stud formation.

Men's Six Nations Championship gets underway on January 31. Here's a crash course on the rules and origins of the 15-a-side ...