Roman Weidenfeller says Borussia Dortmund are viewing their Champions League quarter-final against Malaga as though they were facing Barcelona or Real Madrid.
Dortmund are viewed as dark horses for this season's competition, having already beaten the likes of Madrid, Manchester City and Shakhtar Donetsk, and the German champions are expected to progress to the semi-finals.
However, goalkeeper Weidenfeller says there will be no complacency when they take on Malaga, who have enjoyed a successful campaign despite financial turmoil behind the scenes.
"There are only top teams left in the competition," Weidenfeller told reporters in Germany. "We will not change our approach. Malaga might not have a name like Barcelona, but that is precisely what makes them dangerous. This game has the same status as a game against Barcelona or Real. Our team will know how to approach it."
Despite his comments, Weidenfeller, who believes Dortmund's finest European performance this season came in the 1-1 draw at Manchester City, is wary of the threat Jose Mourinho's side carry.
Dortmund beat the Spanish champions 2-1 at home and drew 2-2 away but, looking back on the season's Champions League campaign, he said: "Real Madrid was my biggest challenge.
"There are better situations than having to face a free-kick from 18 metres away taken by Ozil, Kaka or Ronaldo."
On the domestic front, BVB are all but certain to cede their league title to Bayern Munich this season after claiming Bundesliga glory two times in succession.
"We want to constantly challenge and attack Bayern, but we will not be the only rivals over the next few years," Weidenfeller said. "The Bundesliga has a lot of quality and has earned a strong reputation, with three clubs in the Champions League knockout stages and with successful teams in Europa League."
Meanwhile, Weidenfeller has not made up his mind whether he will remain at Dortmund when his current contract expires in 2014, although he is enjoying his time at the club.
"I am open to all options," he said. "The package has to be right. We have a great squad here in Dortmund, we have 80,000 fans pushing us, and there is not a lot that could be improved."
He said that, at the age of 32, he feels "very strong" and has "become much calmer", and would ideally like to play on for another eight years.
"If my body allows it, I want to keep on playing until I am 40," he said in Ruhr Nachrichten. "I still have a lot of time to think about what I will be doing after that. When the day comes, I don't know if I will stay in football at the moment. Time will tell."