▁from ▁the ▁line out ▁and ▁remove ▁the ▁ball ▁from ▁the ▁back ▁of ▁the ▁sc rum , ▁usually ▁passing ▁it ▁to ▁the ▁fly - half . ▁They ▁also ▁feed ▁the ▁sc rum ▁and ▁sometimes ▁have ▁to ▁act ▁as ▁a ▁fourth ▁loose ▁forward . ▁ ▁Three ▁qu arters ▁There ▁are ▁four ▁three ▁quarter ▁positions : ▁two ▁cent res ▁( inside ▁and ▁outside ) ▁and ▁two ▁wings ▁( left ▁and ▁right ). ▁The ▁cent res ▁will ▁attempt ▁to ▁tack le ▁attack ing ▁players ; ▁whilst ▁in ▁attack , ▁they ▁should ▁employ ▁speed ▁and ▁strength ▁to ▁bre ach ▁opposition ▁def ences . ▁The ▁wings ▁are ▁generally ▁position ed ▁on ▁the ▁outside ▁of ▁the ▁back line . ▁Their ▁primary ▁function ▁is ▁to ▁finish ▁off ▁moves ▁and ▁score ▁tries . ▁W ings ▁are ▁usually ▁the ▁fast est ▁players ▁in ▁the ▁team ▁and ▁are ▁el us ive ▁run ners ▁who ▁use ▁their ▁speed ▁to ▁avoid ▁tack les . ▁ ▁Full - back ▁The ▁full - back ▁is ▁normally ▁position ed ▁several ▁metres ▁behind ▁the ▁back ▁line . ▁They ▁often ▁field ▁opposition ▁k icks ▁and ▁are ▁usually ▁the ▁last ▁line ▁of ▁defence ▁should ▁an ▁oppon ent ▁break ▁through ▁the ▁back ▁line . ▁Two ▁of ▁the ▁most ▁important ▁attributes ▁of ▁a ▁good ▁full - back ▁are ▁depend able ▁catch ing ▁skills ▁and ▁a ▁good ▁kick ing ▁game . ▁ ▁La ws ▁ ▁Sc oring ▁Rugby ▁union ▁is ▁played ▁between ▁two ▁teams   – ▁the ▁one ▁that ▁scores ▁more ▁points ▁wins ▁the ▁game . ▁Point s ▁can ▁be ▁scored ▁in ▁several ▁ways :