A shuddering head-on-head collision in the World Rugby Under-20s Championship has sparked a debate in the game.
Ireland eased past Australia in matchday two, picking up a comfortable 30-10 victory at Paarl Gymnasium in South Africa.
Referee Angus Mabey had just sent Ireland replacement Rory Telfer to the bin for 10 minutes after a head-on-head tackle, when Ruadhan Quinn shaped up for a big carry.
