Edinburgh Rugby have lost their last eight fixtures in all competitions since beating Connacht 24-23 in Galway in the RaboDirect PRO12 on 1 December. The Scotsmen have won just two of their last six matches with Welsh regions at Murrayfield in the PRO12.
Cardiff Blues have won just one of their last five away games in all competitions: 17-6 against Munster in Cork in the RaboDirect PRO12 on 5 January. The Blues have lost on their last two visits to Scotland in all tournaments.
Edinburgh beat the Blues 21-19 at the Arms Park in round two and have not completed a league double over the Welshmen since season 2009/10.
At Murrayfield , 7.30pm.
Referee: John Lacey (IRFU, 26th competition game)
Assistant Referees: David Changleng, Bob Nevins (both SRU)
Citing Commissioner: Iain Goodall (SRU)