Serbia striker Nikola Zigic remains hopeful of World Cup progress despite being beaten by Ghana in their opening Group D clash.
The new Birmingham striker and his team-mates suffered a 1-0 defeat on Sunday to leave them languishing at the foot of the standings and with a testing clash against Germany on the horizon.
Joachim Low's men eased to a 4-0 victory over 10-man Australia later in the day to announce their arrival at the tournament and will provide stiff opposition for Serbia when they meet in Port Elizabeth on Friday afternoon.
But Zigic believes there is no need for alarm in the White Eagles' camp and feels that with greater composure in front of goal they will be able to trouble both Germany and Australia.
"We have to remain calm and keep a cool head because there are still six points for the taking in the remaining two matches and I am confident we can take them," he said.
"The defeat by Ghana was a bitter pill to swallow, we played well for 70 minutes and then got punished for not taking our chances.
"I missed a sitter myself while Ghana scored from out of the blue."
And coach Radomir Antic has called on his side to move on from the tension of their opening match and focus on Friday's clash with Germany.
He added: "We were far too nervous and we have to change our approach for the next two matches because we have to put some points on the board.
"Preparations for the game against Germany will start right away, we have learnt our lesson and we have to move on with our heads up."