Germany coach Joachim Low has yet to devise a plan to combat the threat of Cristiano Ronaldo, but is adamant that he won't use a man-to-man marking system against Portugal in their Euro 2012 opener.

Ronaldo, who is Portugal's captain and talisman, enjoyed another prolific campaign with Real Madrid in 2011-12 - scoring 60 goals in all competitions as Los Blancos ended their four-year wait for the Primera Division title.

The former Manchester United star is expected to make a big impression at the European Championship and will lead his country out against Germany on June 9. But while Low is aware of Ronaldo's danger, he claims his side will not work out a way to keep him at bay until they reach their training camp in Poland, and stressed that it won't involve a one-on-one marking job.

"Will I have Philipp Lahm marking Ronaldo? I will decide where he will play only when I arrive in Poland," Low said. "There is no sense in putting one player on Ronaldo all the time.

"I would need three or four players to stop him. I do not want one-on-one situations against him."

Germany last played against Portugal in Euro 2008, winning their quarter-final clash 3-2 thanks to goals from Bastian Schweinsteiger, Miroslav Klose and Michael Ballack.

Low is expecting his side to face another serious test this time against Portugal, as well as the other tournament favourites in Poland and Ukraine, but insists he is not contemplating failure.

"I had a lot of time to think of all the possible scenarios back in January, February. However, at this point, I have only one thing on my mind and that's Portugal," Low was quoted as saying by Kicker. "I am not even thinking about the possibility of failure. The team has made a lot of progress. That does not guarantee that we will win the title, though. Details will be decisive this summer.

"We don't underestimate anyone. The other teams have a lot of quality, too. People should not think that Netherlands are inferior with players such as Robin van Persie, Wesley Sneijder and Arjen Robben. Portugal have Real Madrid stars like Cristiano Ronaldo and Pepe, while Spain have world-class stars like Xavi and Andres Iniesta. It would be silly to think they have less quality than Germany."