I think Bayern could easily "sleep" against former Bundesliga champion Wolfsburg. The first reason is World Cup in South Africa. Bayern have almost all players there with German, or other national teams. I am afraid they are not in the right form yet. Look at the other champions, they all have similar problems. For example, Barcelona lost 3:1 from Sevilla in Spanish Supercup last Saturday. The French champion Olympic Marseille started even worse. They lost both opening games in domestic championship. So, I won't be surprised if Wolfsburg win tonight on Alianz Arena in Munchen. They have a slod players like Dzeko, Grafite and Misimovic. Now they are even better with Mandzukic who sign this summer from Dinamo Zagred. He is very quality player. With him Dinamo won against Maribor in UEFA Champions league second qualification round with 5:1. Then he join Wolfsburg and Dinamo lost 4:1 from Maribor (still it wasn't enough for elimination), and then lost from Sheriff Tiraspol from Moldova. So, I think Mandzukic is just a sort of player that Wolfsburg needs. He will make good passes to Grafite and Dzeko in attack, but he is also able to score goals. But there is another reason why I think Bayern Munchen can loose this game. Two key players of Bayern are injured - Arjen Robben and Ivica Olic. Without them Van Gaal will have a lot of problem in attack. Having all on mind, I think Wolfsburg can win even as a visitor. After all, Wolfsburg was a champion just two years ago and have many experieced players. But they are also good players at the same time.