rugby try kicking tackling conversions lineouts scrums mauls rucks drop goal penalty offside high-tackle in-goal side-line scrumhalf fly-half centre wing prop hooker flanker lock 8th-Man referee linesman posts dead-ball knock-on shorts boots tops kicking-tee whistle commentators flags yellow-card red-card sin-bin in-touch passing forward-pass grubber box-kicks stadium foul-play coaches fans pitch 22-dropout kick-for-touch truck-and-trailer full-back