Scarlets looking dangerous going forward. Aaron Shingler went powering down the line but was brought down by the Quinns defence.

Harlequins get on the board thanks to a penalty from Nick Evans. Scarlets were penalised at the ruck.

Terrific start by the away side. Dominating Harlequins right now and they extend their lead through Priestland to 13 points.

Scarlets extend their lead through the boot of Priestland. Harlequins yet to get going. 10-0 to the away side.

Try Scarlets! Brilliant inter play between Rhys Priestland and Rhodri Williams sees Williams dive over for the first try of the game. Good pace and vision from Priestland to find Williams. Conversion is good so Scarlets lead 7-0.

Opening 5 minutes has been quiet. Scarlets employing a long kicking game to push Quins as much as they can.

Nick Evans kicks us off.

Hello and welcome to this Heineken Cup encounter which sees Harlequins take on Scarlets. After a disappointing season in this competition last year, both sides will be looking to get their campaigns off to a good start. Harlequins have had a mixed start to the season and will need to be on their best to beat a Scarlets side which welcomes back Jonathan Davies. Be sure to follow Ultimate Rugby for live updates.