Player Positions

Regardless of position, all players need to know and will have the opprotunity to carry, pass, and kick ball as well as tackle opposing players.  All players are "skill players".

15s Rugby

Forwards
1. Loosehead Prop: Front-row of scrum, 
            Person on the left side.
2. Hooker: Front-row of scrum, 
            Middle person. 
            Responsible for hooking the ball with their foot 
            and bring it their team's side of the scrum.
3. Tighthead Prop: Frontrow of Scrum, 
            Person on the right side.
4. Lock: Backrow position in the scrum, 
            Responsible for keeping the Forwards "locked" 
            together.
5. Lock: See above
6. Open-side Flanker: 
            (similiar to a FB Running Back)
7. Blind-side Flanker: See above
8. Eight-man: 
            (similiar to a FB Running Back)
9. Scrum-half: This position coordinates play on the 
            field.
            (Similar to a QB in football)

Backs
10. Fly-half:
12. Inside Center:
13. Outside Center:
11. Left-side Winger: 
            (similiar to a FB Wide Reciever & 
            Defensive End)
14. Right-side Winger: See above
15. Fullback: 
            (similiar to a FB Safety)

Substitutes
16, 17, 18.  Front-Row Substitutes (minimum)
19, 20, 21, 22. Utility Susbstitutes

A  team can have up to 25 on the team roster.

7s Rugby

Forwards
1. Loosehead Prop: Front-row of scrum,
            Person on the left side.
2. Hooker: Front-row of scrum, 
             Middle person.    
             Responsible for hooking the ball with their foot 
             and bring it their team's side of the scrum.
3. Tighthead Prop: Frontrow of Scrum, 
             Person on the right side.
4. Scrum-half: 

Backs
5. Fly-half
6. Center
7. Winger / Fullback

Substitutes
8, 9.  Front-Row Substitutes (minimum)
10, 11, 12. Utility Susbstitutes

A  team can have up to 15 on the team roster.

Those coming from American Football may find the following webpage of interest.  "Rugby Positions for the American Football Player: How Gridiron Skills Can Translate to the Rugby Pitch."
http://www.associatedcontent.com/article/2260861/rugby_positions_for_the_american_football_pg2.html?cat=14