The T.M.O.
None? If you aren't utterly exhausted when you leave the pitch, then you haven't played hard enough. And that is true of every position.
The basics of rugby in my opinion is simply giving everything you have for 80 minutes. Doesn't matter how good you are, if you are coming off the field feeling as though you more to give then you aren't doing your job properly. I can accept players that don't have a high level of ability, but giving less than 100% is an absolute no for me.
Lazy? Sit on the bench...you won't get tired there.
Winger
the fullback doesn't get much action for a while until the ball comes into his territory so i guess thats probably not very tiring
