In better news, Leinster will have front row Andrew Porter available who came through their weekend URC win over Scarlets, while James Ryan, Tadhg Furlong, Jimmy O’Brien and Garry Ringrose will continue to be assessed in the build-up to the European clash.
That 36-19 win over Scarlets at the Aviva Stadium on Friday saw Leo Cullen’s side put two URC losses behind them to move up to fourth in the standings as the club season hits the business end.
Nienaber was happy with that bonus-point win, but knows his side must build on it in a knockout game against an Edinburgh team smarting from their defeat by the Stormers last week despite the return of Scotland trio Grant Gilchrist, Darcy Graham and Pierre Schoeman.
“We are excited to be going into Europe,” Nienaber added.
“If you don’t deliver a performance and win, you are out so we are working hard to deliver those performances.
“They [Edinburgh] had some big performances when beating Toulon at home and Gloucester.
“If you don’t get your detail right on the day, they have brilliant individuals who are well coached and they can put you away.”
