Cape Town - Stephen Keshi felt Nigeria were "nervous and unsettled" against Iran on Monday as the two sides' Group F opener finished in the first draw of the 2014 World Cup.
Unlike the opening 12 matches of this year's Brazil spectacular, where a total of 41 goals were scored, neither the Super Eagles nor Team Melli were able to find a way through in game number 13 as the Arena da Baixada encounter finished goalless.
Speaking after the game, Keshi told journalists: "The boys were nervous and unsettled - you don't do that at this stage.
"It happens in football. We really didn't perform as expected but we have to move on.
Keshi, who is linked with the Bafana Bafana job after SAFA revealed that they would not extend Gordon Igesund's contract beyond August, says that they will have to better in there next encounter where they face a brave Bosnian side.
"I wanted a win but we must take a draw. We must do better to get a win against Bosnia."
The result left Nigeria and Iran level in second place in Group F, with Argentina topping the standings after seeing off Bosnia and Herzegovina in their opener on Sunday.