Germany coach Joachim Low thinks there is still much room for improvement even after his side thrashed Australia 4-0 in their opening Group D encounter on Sunday evening.
The three-time World Cup winners tore the Socceroos defence apart seemingly at will and could easily have scored more than the four goals they did grab courtesy of Lukas Podolski, Miroslav Klose, Thomas Mueller and Cacau.
Low remained unimpressed however, saying: "We can get better. In terms of closing the space between defence and midfield, we were too defensive. But we can be very satisfied, happy and confident with the performance."
Germany were already two goals ahead when Australia had Tim Cahill dismissed for a clumsy 55th-minute challenge on Bastian Schweinsteiger, with Low adding:"I am very happy about the performance, we showed some quick passing and good speed.
"It was very important that we won because we gained a lot of self confidence.
"Our defence was excellent, they performed very well and I was very happy with our counter-attacks.
"It's always great to see that my team can implement my tactics on the pitch. From beginning to end, Australia were rather defensive and we had to change our attacks. I thought we did very well and we scored very nice goals.
"We can now hope to make the last 16 with just one more win. All the players were very, very focused. We did many things right but this is just the start. We have to keep our concentration. We want to reach the last-16 stage at least."