Rugby league legends on the Sunday Footy Show panel clashed over a penalty awarded to Canberra during Saturday's shock win over Brisbane.
Broncos enforcer Marty Taupau was penalised when his knee made contact with the head of Raiders fullback Jordan Rapana, forcing him from the field with a nasty gash and blood streaming down his face.
Rapana had caught a bomb and was falling forward when Taupau's knee made contact.