Dagg injured his knee in the Canterbury Crusaders 22 - 20 victory over the Queensland Reds in Brisbane and looked to be in considerable pain .
Dagg alternated between wing and fullback for the All Blacks last year .
Dagg , who alternated between wing and fullback for the All Blacks last year , injured his knee in the Canterbury Crusaders 22 - 20 victory over the Queensland Reds in Brisbane and looked to be in considerable pain .