French back row dynamo Olivier Magne reckons his Montferrand side must win both games against Leinster Lions to qualify for the quarter-finals of the Heineken Cup.
The newly named Vulcans have home advantage in the first of the back-to-back matches in Pool 4 and Magne wants to make sure that he gives the fans at Stade Marcel Michelin something to shout about.
'We have to win these two vital matches against the Leinster Lions. We have already lost a match in the competition - against Bristol - so we have to win all our remaining games,' said Magne.
'Hopefully our experience in previous Heineken Cup campaigns will help us to win away from home this time around.
'We must first get a win at home in front of our own crowd, but if we produce a perfect performance, there is no reason why we can't go and win at Donnybrook - we have to if we want to qualify to the quarter-finals.
'This is not the French Championship now - in the Heineken Cup, anyone can go and win away from home.
'We are very excited about playing these games against Leinster - you don't get the chance to play such quality teams every week - after all, half the current Irish team will be playing tomorrow.
'It is a provincial team with players like O'Driscoll who is a key player for Ireland but also the Leinster hooker has been playing well for Ireland recently. Their forward pack is extremely strong and they have a quality back line.
'This kind of game creates such passion and interest on behalf of the players and the supporters and it comes at the perfect time for us. We are determined to produce a big match at Stade Marcel Michelin but the goal is go and get a result in Dublin. We must win both matches.'