Aurelien Rougerie believes defence will win the day when his table topping Top 14 ASM Clermont Auvergne team go into their must-win clash with the Ospreys at Stade Marcel Michelin on Saturday.
With the Ospreys unbeaten and four points clear at the top of Pool 3, French star wing Rougerie accepts a third defeat would be a major setback - although they go into the contest boosted by a 16-15 victory at Toulouse at the weekend that earned them the leadership of the Top 14 table.
"We know we are in for a big clash and that the game is vital if we want to qualify for the quarter-finals," he said. "If we lose at home against the Ospreys that will be it, we will be out. There is no room for error, we can't afford to lose.
"I think defence will be a key point for both sides and in Round 2 we had a taste of just what tough and fierce opponents the Ospreys are. They are a complete side with powerful and mobile players up front and a fast backline who enjoy playing out wide - they are good at piercing defences and scoring tries.
"The game in October finished with a really tight score to them of 25-24. We were too slow starting and they put a lot of pressure on us, they smothered us and we couldn't impose our game in the first half.
"We managed to get back but it was a really tough match. They have so many quality players and also plenty of international experience.
"As for their backs and looking at how they play, Barry Davies, Nikki Walker and Tommy Bowe must spend a lot of time training on support, especially Davies as he is a bit more powerful than when he was with Brive.
"They also have very good handling skills and are really keen to get their hands on the ball. All this talent and the hard work they put in is proof the team is serious about the job.
"We have a lot of talented players and we also like to run the ball. In the games against Leicester, it was a real treat because we got to express ourselves on the field. It did us a lot of good and allowed us to play this Heineken Cup
campaign on a better note.
"It will only be when each player takes more individual responsibility that we will progress as a group and be able to go further in this tournament.
"I was rested for last weekend's Top 14 16-15 win at Toulouse due to long-lasting minor glitches and to avoid any potential complications. The staff wanted to have a turnover in the squad anyway so it was ideal for me to have a break.
"We are already suffering from the absences of Jason White and Julien Bardy who sustained tibia and fibula fractures respectively so we did not really start the new year on the right foot and let us hope the number of long-term injured players will not increase otherwise we will struggle to finish the second part of the season."
Clermont have not qualified for the Heineken Cup knock-out stages since the 2001/02 season but they are double European champions after winning the Amlin Challenge Cup tournaments in 1999 and 2007.
"So far my best memory in Europe remains our victory in the 2007 Challenge Cup final against Bath," said Rougerie.
"That was a great moment because although we generally do well each season in our domestic championship, we had been struggling for a number of years to win any silverware and that trophy was most welcome. We have been surfing on that good vibe ever since and we always try to find our inspiration from that experience to keep a positive spirit."
British and Irish Lions captain Sam Warburton is looking forward to bringing together players from Ireland, Scotland, England and Wales for the biggest challenge of their careers - a series against world champions, New Zealand.
For the fifth year running, Wales referee Nigel Owens will be in charge of proceedings at Judgement Day V at Principality Stadium. It promises to be 'extra special' for the Wales' favourite ref, as he will be making his 150th appearance in the league.
There will be no shortage of inside knowledge from Bowl Finalists Caerphilly and Amman United when they face each other on Sunday at National Finals Day. Caerphilly hooker Rhys Cleverly knows the Principality Stadium pitch better than most as a matchday groundsman, while Amman United can look to Wales' record try scorer Shane Williams for some helpful advice.
Two hundred and 40 teams competed in the inaugural Urdd WRU 7s held at Pencoed last week with Welsh internationals Steff Andrews and Jasmine Joyce impressed with the talent on display, as was Urdd chief executive, Sioned Hughes.
The countdown is on for Judgement Day V as tickets for the big day at Principality Stadium soar through the 50,000 mark. Players and coaches alike are bursting at the seams to play in the double header with Dragons coach Kingsley Jones claiming there is a 'real buzz' about the event.
WRU TV went behind the scenes when the four regions got together to test their skill set for the BBC's Scrum V Live rugby show, at the WRU National Centre of Excellene in the build up to Judgement Day V. Blues' Matthew Morgan was one of the stars of the show while the Dragons' Cory Hill proved a surprise package...the full set of results will be revealed on tv screens on matchday
Wales assistant coach Richie Pugh is confident his side can cause a few headaches in the Hong Kong Sevens this weekend. In a tough group, Wales kick off their campaign against New Zealand on Friday before playing Japan and Fiji, who are chasing their third consecutive Hong Kong title, on Saturday.
Bedwas had to overcome a stubborn Carmarthen Quins side before winning the Foster's Challenge Cup final in Bridgend with a 23-18 victory. Bedwas captain Nicky Griffiths pays tribute to his side who have claimed the club's first piece of silverware in the modern era.
Team coach Brett Davey is aiming to keep his unbeaten run in cup finals at Principality Stadium intact when his side take on Amman United in the WRU Bowl final, after he guided Caerphilly to a 20-14 win against Cilfynydd in the semi-finals.
Penallta are hoping to go one step further than last season when falling to Bedlinog in the WRU Plate Final. After a titanic struggle against Nant Conwy, they have given themselves a great chance, after a hard fought 18-13 semi-final victory.
The unique jeopardy of Judgement Day V has been described by stars from Cardiff Blues, Ospreys, Scarlets and Newport Gwent Dragons who will face each other in the annual double-header at Principality Stadium on 15th April.