Toni Kroos admits Bayern Munich will only have themselves to blame if they crash out of the Champions League to Arsenal this evening.
The runaway Bundesliga leaders face Arsene Wenger's side on Wednesday night with a comfortable 3-1 advantage from the first leg at the Emirates.
It means that Arsenal must score three times at the Allianz Arena to have any chance of progressing through to the quarter finals.
Despite that two-goal advantage, Kroos knows that Bayern cannot afford to go into the game with the wrong attitude.
He said: "It is extremely good to be 3-1 up ahead of a home game but it will not be easy as Arsenal are a very good team.
"But we will be really stupid if we go into this game with the wrong attitude and then give it all away and fail to qualify.
"I hope this does not happen."
Bayern twice recovered from a losing position to beat Fortuna Dusseldorf 3-2 on Saturday - their 11th straight win in all competitions.
While Bayern looked formidable going forward, they looked slightly suspect at the back - a weakness Arsenal must exploit if they are to have any chance of progressing to the Champions League quarter-finals.
And midfielder Javi Martinez fears fellow Spaniard and close friend Santi Cazorla could cause his team major problems.
Martinez said: "I speak to Santi a lot he is a close friend of mine and we speak a lot and exchange a lot of texts.
"Santi is very comfortable in London, it is a place he likes and he enjoys playing for Arsenal.
"He keeps telling me how they are determined to come and win and do something special.
"We have to be very careful of him as he can hurt teams."
Ahead of the game, Bayern boss Jupp Heynckes, who will be replaced by ex-Barcelona manager Pep Guardiola in the summer, confirmed that Brazilian Luiz Gustavo will start the second-leg clash instead of Bastian Schweinsteiger.
Schweinsteiger will sit out the decisive second leg after picking up another booking at the Emirates a fortnight ago, resulting in a one-game suspension.
Heynckes said: "Of course, Luiz Gustavo will play on Wednesday, providing that he stays fit.
"He is working great and is in top shape physically."
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