Technical Adviser of the Super Eagles Gernot Rohr has disclosed that the team has been working tirelessly to stop conceding from set pieces ahead of their second Group D clash with European newcomers, Iceland in Volgograd on Friday.

The 3-time African champions have recently struggled with defending set pieces, conceding twice against Croatia on Saturday from dead ball situation.

“We are working on it in meeting with a video,” the 64-year old told a press conference on Wednesday. “We are working on our own positioning, but also what they are doing, like everybody does. Everybody is working.

“Tunisia was working, Morocco was working but they concede a goal. You can work day and night, but you must have cool head and a good concentration. And if you are already like this when there’s a corner, you even get (concede) a goal, it is not good.

Rohr also said that each member of the team has a part to play in ensuring that the problem is taken care of.

“So we have to be cool, professional. Each one has his role to play defensively and even offensively.

“We didn’t concede any goal for two years on a corner in Africa. Not one goal. And sadly you are playing against different teams – European teams – who are stronger in this exercise. So we have to be stronger also, and we are working on it.”

Nigeria take on Iceland at the Volgograd Arena by 4pm (Nigerian time) tomorrow, and it is left to be seen if Rohr has corrected the lapses on defending set pieces.