Pro12: Where Wales' regions stand ahead of round five

Scrum V's Ross Harries offers a reminder of where Wales' regions stand in the Pro12 going into round five at the weekend.

Scarlets are leading the Welsh charge and face table-topping Munster on Friday.

On the same night Newport Gwent Dragons host Treviso while Cardiff Blues are at Ulster.

Ospreys travel to Connacht for their Saturday lunchtime encounter.

UK users only.