Scarlets coach Simon Easterby insists his side are capable of ending Clermont Auvergne's formidable home record this weekend.
Easterby's side currently lead Heineken Cup Pool Four after edging Harlequins before being held to a draw by Racing Metro, but they now face a huge test against last season's runners-up.
The French club proudly boast a remarkable 67-match unbeaten at the Stade Marcel-Michelin, where they have won their last 16 Heineken Cup fixtures.
Clermont crushed Scarlets twice in the competition last season, but Easterby believes his players have the ability to cause a huge upset on Saturday.
He said: "It is a real challenge but one that the team is ready and up for. Our history in Europe against French teams shows we can cause an upset.
"The camp is in a good frame of mind and energy and spirits are running high after a good week's training.
"It's unquestionably one of the best home records of any sporting team in the world. It's a phenomenal place to go and play rugby, Clermont at home are pretty difficult to beat.
"I think you have to go there with a positive mindset, if you go there trying to avoid a beating then that's exactly what you'll get. We've worked hard this week on things we can get right in our game but also working hard to prevent their momentum.
"We're really positive about going there, it's a phenomenal challenge but records are there to be broken. It's a great contest for the players and for us as a young coaching group and a fantastic opportunity for us all to be a part of."
Meanwhile, Northampton host Leinster on Saturday in a repeat of the memorable 2011 final, when the Irish giants hit back from 22-6 behind to pull off a stunning victory.
Saints will be without George Pisi, Ben Foden, Jamie Elliott, James Wilson and Kahn Fotuali'I, but Stephen Myler was keen to play down the lengthy list of absentees.
"We may need to alter a few things but it's something we feel capable of and you have to deal with it," said the veteran fly-half.
"We feel we're in a strong position and that we've got players who can come in and are doing a good job. We know what a quality side Leinster are. We're really excited. It's a good test for us."
Watch Scarlets take on Clemont Auvergne live on Sky Sports 2 via the red button. Coverage starts at 1.35pm