Bayern must adapt to a different kind of threat against Porto to progress in the Champions League, says the manager.
Pep Guardiola has warned his Bayern Munich side not to underestimate Porto's quality ahead of Wednesday's UEFA Champions League quarterfinal first leg.
The runaway Bundesliga leader travels to Estadio do Dragao on the back of a comfortable 3-0 league win over Eintracht Frankfurt, but Guardiola knows the club can expect a much sterner test in Portugal.
"It is a Champions League quarterfinal, which means all the teams have a great level of ability," he said. "Porto are a top team, I am not surprised by their progress.