It will be a tough task for the Nigeria coaching team to select their final squad for the World Cup, coach Gernot Rohr has told FCNaija.comThe Super Eagles have been drawn in Group D alongside Argentina, Croatia and Iceland for Russia 2018. With six months left to the start of the Mundial, Rohr says he will have a selection headache when the time comes to pick his team because he has a wealth of talent vying for final places in the squad. “We have to be open to wonderful players who are very strong at their clubs. We have to hope that the players work very hard at their clubs because we will only see them again in March,” Rohr told FCNaija.com.“We will first have to do a list of 35 and later a list of 23. It will be difficult because I have good competition in all positions,” he said.Nigeria will open their World Cup campaign against Croatia in Kaliningrad on June 16 before travelling to Volgograd to meet debutants Iceland on June 22 and then round up the group phase with a game against perennial opponents Argentina in Saint Petersburg on June 26.