By Jason Leonard - Former England and Lions Prop
A prop's main role is to scrummage, support in the line-out, tackle and hit the rucks and mauls.
No matter how fast and powerful the game becomes, a prop will always be a prop.
The difference nowadays is that props also have to be able to catch, time a pass to put teammates into space and run.
Many top props are now very powerful runners and you may even see the odd sidestep.
The tight-head prop is very much the fulcrum. He anchors the whole scrum and is destructive in a negative sense.
He will be trying to put the opposition loosehead under pressure.
The primary role of the loosehead, on the other hand, is to look after the hooker so he can get a clean strike at the ball, but these days loose-heads have to be destructive too.
The tight-head plays on the right of the front-row and mainly uses the right-hand side of his body, whereas the loosehead's left side dominates.
Because of this, it is fairly rare to find someone who can excel at both.
To be a good prop, you've really got to enjoy the position - it's not everyone's cup of tea, putting your head where it hurts.
It's possibly the only true position on the field where you actually have a one-on-one with your opposite number and I relished that aspect of it.
You need to love that confrontational challenge to get the most out of it.
England's Phil Vickery is my idea of a perfect modern prop.
He's a fantastic scrummager, great in the line-out because he is quite tall, he has good hands, contributes all around the park and regularly tops the tackle count.
The Ruggas 2017 Drafts was done as shown below.
Quagga - Tristan Leitch (Paul Roos)
Shawn - Asenathi Ntlabakanye (Saints)
BMT - Joshua Du Preez (Boishaai)
Sabbat - Keegan Glade (KES)
Hooit - Naude Naude (Grey College)
Kattes - Rocky Knox (Michaelhouse)
Charl - James Combrinck (Affies)
Beet - Cameron Moodie (Selborne)
Louis - Tori Maritz (Eldoraigne)
Carl - Wolvaardt Meades (Witteberg)