David Young has made two changes to the team that defeated Newcastle Falcons for the match against the Scarlets on Saturday
Second row forward, Paul Tito, returns to the starting line up with Bradley Davies dropping down to the bench. In the front row, Gareth Williams starts at Hooker with T Rhys Thomas also moving down to the bench.
Gethin Jenkins makes his 100th appearance for the Blues having joined the region in the summer of the 2004.
The Blues travel to Parc y Scarlets boosted by two big away wins, having recorded a 33 to 24 point win over Ulster at Ravenhill in the Magners League and 55 point to 20 win over Newcastle Falcons in the north east of England in the Amlin Cup. Even more impressively the Blues have also won their last five away encounters.
They will be buoyed by the fact they have beaten Scarlets twice already this season, 19-15 at Cardiff City Stadium in the Magners League and 38-23 at Parc y Scarlets in the Anglo-Welsh Cup.
Tickets for the match are available by calling the Scarlets ticket office on 08718718088
The Supporters' Club are running coaches to Parc-y-Scarlets, please contact Graeme on 07825 219354 to book your seats.
15 Ben Blair 14 Leigh Halfpenny 13 Casey Laulala 12 Jamie Roberts 11 Chris Czekaj 10 Ceri Sweeney 9 Richie Rees
8 Xavier Rush 7 Martyn Williams 6 Maama Molitika 5 Paul Tito (c) 4 Deiniol Jones 3 Taufa'au Filise 2 Gareth Williams 1 Gethin Jenkins
16 T Rhys Thomas 17 John Yapp 18 Bradley Davies 19 Sam Warburton 20 Lloyd Williams 21 Dai Flanagan 22 Dafydd Hewitt
Not considered for selection
Andy Powell - calf and hamstring strain
Tom James - groin
Sam Norton Knight - back
Long term injuries
Gareth Cooper - groin
Tom Shanklin - knee
Gary Powell - ruptured Achilles
Sam Hobbs - head injury
Judgement Day IV is nearly upon us. The showpiece event, held for the fourth year running at the Principality Stadium, will see Cardiff Blues facing Ospreys, followed by the clash between Scarlets and the Dragons.
For the past two seasons you may have noticed an artist in the crowd and drawings appearing on twitter and TV. These collections of drawings were all produced from life, on the spot without the use of a camera in order to capture the vibrancy, emotion and atmosphere of the moment.
Join Cardiff Blues for Wales' home matches in the 6 Nations with our fantastic hospitality packages at BT Sport Cardiff Arms Park - but act quickly to take your place with our Scotland packages now SOLD OUT!