FC Bayern München striker Robert Lewandowski says his side need to play "much, much better" than they did against Eintracht Frankfurt if they are to get past SL Benfica in the UEFA Champions League next week.

Franck Ribery's strike ensured that the Bavarians maintained their five-point cushion over Borussia Dortmund at the top of the Bundesliga on Saturday, but they struggled against Die Adler and will likely need an improved performance in Tuesday's quarter-final first leg against the Portuguese league leaders at the Allianz Arena.

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Question: Bayern CEO Karl-Heinz Rummenigge says that kind of performance will not be enough against Benfica. Is he right?

Robert Lewandowski: We have to play much, much better, that's obvious. We especially have to be faster. Benfica defend very well. We have our own game to play. We will push forward and try to score goals.

Report: FC Bayern München 1-0 Eintracht Frankfurt

Question: Is it fair to describe the 1-0 win over Eintracht Frankfurt as laboured?

Lewandowski: Yes, it wasn’t a perfect game by us. But we still have three points and we can now focus on the Champions League.

Question: Why did you find it so difficult?

Lewandowski: It’s never easy after international matches. Some players got back on Thursday afternoon. Eintracht played well defensively, with five at the back plus two holding midfielders, which is always difficult.

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Question: Javier Martinez made his comeback after two months. How important is he for the team's stability?

Lewandowski: I think he played very well today, despite his long absence. This stability is important. If Jerome [Boateng] returns soon after him then everything comes together. We're playing every three days, so it’s important that everyone is fit.

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Question: Shortly before half-time there was a tussle with David Abraham. What happened?

Lewandowski: This can happen in football from time to time, there was too much adrenaline in the game. I wanted to take the ball, he probably did too. It’s not a big deal. Everything was fine soon after.