Ulster hooker Nigel Brady admits their Heineken Cup clash against Edinburgh has become an all-or-nothing affair.
Both teams trail French giants Stade Francais by four points with two games to play and Ulster know defeat would certainly spell the end of their European dreams.
Edinburgh have already come out on top in their two previous meetings this season but Brady is planning to make it third time lucky against Rob Moffat's team.
"It's a must-win game for us, no matter what else happens," he said. "We must get a result in order to give ourselves a chance. We have to win and rely on Stade Francais slipping up.
"Realistically we're probably going to have to pick up a bonus point somewhere along the line, too.
"Edinburgh have turned us over twice already this season. We were pretty disappointed with the way we played over there in the European game.
"And the earlier game, in the Magners League, was one we let slip away.
"As a pack, we've been playing together for a wee while now and week on week the scrum has been improving. Playing beside each other regularly gives you more cohesion. We're tighter as an eight now."