Toulouse flank Yannick Nyanga has labelled winning at Welford Road the "Everest" of European rugby ahead of Sunday's decisive clash with Leicester.
The fixture between the two former champions is undoubtedly the clash of the final pool round, with top spot in Pool Two and a place in the quarter-final on offer for the winners while the losers are set to be eliminated.
Toulouse took a while to getting going against Treviso last weekend and French international Nyanga, who captained the four-time champions in what ended up being a bonus-point victory, is well aware they cannot afford another slow start this weekend.
"We got the job done (against Treviso), even if the manner left something to be desired," said Nyanga.
"We're going to be stubborn and continue to believe in what we're doing.
"We knew that this last match at Leicester would be decisive," he added.
"We have the capacity to trouble them even if they lose very few matches at home.
"It's the Everest of the competition that awaits us but we have a week to prepare well.
"We'll be up against half of the England team and when you see their results during the autumn internationals, you can see that it's a massive challenge in store for us."
Toulouse were 23-9 winners the last time the teams clashed, in the Ville Rose back in October, thanks largely to an opportunistic try from young centre Gaël Fickou, who will miss the return clash due to an ankle injury.