Ulster captain Rory Best admitted his side's review of their heavy home loss to Saracens would not be a pleasant affair.
The Irish province were well beaten by visitors Saracens last Friday in the Champions Cup, handing them an early setback in the competition.
Matters don't get any easier given that Ulster face PRO12 rivals Leinster next weekend.
"We have to be men about it and stand up to what's going to be a fairly tough review. I don't think anyone likes to lose, especially big games at home," Best told the EPC Rugby website.
"The good thing about having Leinster away next is that if we don't learn from that, do it quickly and produce a much better performance then you'll be on the end of another beating like that.
"That's the pressure we're under. We're going to have to front up and learn a lot of harsh lessons. We've got to quickly park that and move on. We're looking for a vast improvement."
Best added that Ulster had gone into the game full of confidence, but couldn't match Saracens stepping up and taking every chance on offer.
"We came here with a game plan and were very confident that we would win. We didn't implement it as we meant to.
"I'm not sure if it's a shift in power, it's hard to speak for Leinster, but we're a lot better than we showed," added Best.
"The big difference against Saracens is that if you give them half a chance, they take it. They had four real chances and scored four tries."