Football Champions League Champions League Bayern will have to really mess up to lose to Barcelona, says Matthaus The Bavarians strolled into the last eight of the Champions League by thrashing Chelsea 7-1 on aggregate while Barcelona was 4-2 aggregate winner against Napoli. Reuters 09 August, 2020 17:35 IST Bayern Munich's Robert Lewandowski. Reuters 09 August, 2020 17:35 IST Bayern Munich would have to drastically under-perform to lose to Barcelona in next week's Champions League quarterfinal in Lisbon, according to its former midfielder Lothar Matthaus.The Bavarians strolled into the last eight by thrashing Chelsea 7-1 on aggregate while Barcelona was 4-2 aggregate winner against Napoli.The clash of the clubs with five titles each in the competition is the standout tie of the four one-legged quarterfinals, but Matthaus sees only one likely outcome.READ| Barca backs itself against Bayern despite nervy path to quarters “Of course Barcelona have the quality to be at their best in a game,” he was quoted in Marca on Sunday.“But I think Bayern would have to make a lot of mistakes and do a lot of things badly to lose to this Barcelona.”Barcelona has won only two of its 10 games against Bayern and manager Quique Setien would inevitably come under scrutiny if it falls to the Bundesliga giant on Friday.READ| Messi helps Barcelona sink Napoli to reach Champions League quarterfinals While Bayern does look favourite, Matthaus believes the fact that the tie is over one leg, rather than the usual two because of the re-organisation caused by the COVID-19 pandemic, means that the form book could go out of the window.“In a one-off game, things can happen. You do something bad and you're out. You can correct these things in two-legged ties,” he said.READ| Champions League: Bayern routs hapless Chelsea to reach quarters Barcelona's Sergi Roberto suggested the pressure will be off the Catalans, having reached their objective of arriving in Lisbon for the climax of the tournament.“We don't know what we'll need against Bayern,” he said. “But we're going to prepare for the game and see their weaknesses. Our goal was to be in Lisbon and now we are.” Subscribe to our daily newsletter Get your daily dose of Sportstar with handpicked stories delivered right to your inbox! SUBSCRIBE Please enter a valid email address. Dugout videos