Brent Cockbain believes the fear factor of playing French clubs has gone and that they can do the home "double" over Stade Francais Paris at the Liberty Stadium on Sunday and keep their last eight hopes alive...
"Our defeat in Paris means there is an element of pay-back against Stade but we beat them at home last year and everything is up for grabs in our Pool," said the Wales lock.
"The fear factor of facing French sides has gone a bit - look at the Scarlets' comeback against Toulouse - and we have everything to play for."
And Stade captain David Auradou accepts quarter-final qualification is still up for grabs, adding: "The Ospreys are a team we respect.
"We lost at the Liberty Stadium last season and the game that we won at Jean-Bouin against them in October was close to Test level regarding intentions, tactics, technique, rhythm, pace, mistakes and intensity.
"The Ospreys have a very good line-up with a lot of gifted and physical international players, a good scrum and pace in the backline. Quite simply, the Ospreys can rule a game from the beginning to the end and their confidence is growing.
It's a must-win game, a kind of quarter-final before the quarter-finals, and the winner could well qualify. But to have a home quarter-final we have to win at the Liberty Stadium although our defeat in Bayonne was not the best way to prepare for such a big game."
The directors of ERC voted unanimously at a Board meeting to postpone all decisions including the release of further instalments of ERC's distributable central revenues to the six shareholder countries until 19 February next when the Board will meet again to reconsider the issue.