Need a sckrev

Cardiff hold up the Dragons and win a scrum as a result

O'Brien kicks to touch again

Penalty to the Dragons again and the referee speaks to skipper Warburton for repeated infringements

Again the Dragons go to the maul

Penalty to the Dragons and O'Brien kicks to touch

They're 10m out now

The Dragons go to the maul from the lineout

Penalty to the Dragons at the scrum

Knock on and we'll have another scrum