Rugby union was :) the rugby union club i captain is the oldest rugby club in the world

rugby union

With the diversity in positions and skills needed within those positions, it is impossible to choose a top ten for most sports. This is however not true for tennis, which is easier to compare. But for rugby, i'd say Jonah Lomu, Gareth edwards,

rugby union is the world cup, the six nations, the european nations cup... rugby union is what people know as rugby. all other forms of rugby are not as popular.

Yes, a rugby union video referee is a qualified Rugby Union Referee.