Bayern wary of 'extraordinary' Griezmann in Atletico reunion

Griezmann ousted two German sides from semi-finals in recent months as his away goal sealed Atletico's path to the Champions League final after a 2-2 draw on aggregate in May and then scored twice as France dumped the world champions out of Euro 2016.

"He is an extraordinary player as he has showed against us and in the Euros," said Lahm.

"He is a very quick player. I don't think you can compare him with (Bayern striker) Robert Lewandowski, he (Griezmann) plays deeper and is very dangerous on the counter-attack."

Griezmann hailed the impact of Atletico boss Diego Simeone in his transformation into one of the best players in the world over the past two years and his desire to stay in Madrid despite offers to leave in the close season.

However, Simeone played down his role as a mentor to the Frenchman.

"I am not a mentor I am just a coach that is helping him mature," said the Argentine.

"He is maturing into a extraordinary footballer thanks to his hard work and the hard work of the players around him."

Bayern have been eliminated by Spanish opposition in the past three seasons and failed to score on all three previous visits. A stat which Spanish international Javi Martinez believes means they can't be called favourites ahead of their trip to the Vicente Calderon.

"We are not favourites, we are playing against one of the best teams in Europe," added Martinez.

"They have many players that are difficult to mark. The most dangerous is Griezmann, he scored in the semi-final in Munich, but what makes Atletico dangerous is how the play as a team."

Carlo Ancelotti, who led Real Madrid to the Champions League at Atletico's expense in the 2014 final, has replaced Pep Guardiola as Bayern boss with the task of turning domestic dominance into a sixth European Cup.

Martinez added that Ancelotti's Bayern is slightly more direct than in the previous three years under Guardiola.

And Ancelotti hailed Simeone's much more defensive and aggressive style that has turned Los Rojiblancos into one of Europe's most feared sides.

"The trend is to play more direct, to have more efficient possession. Possession allows you to have to control, but the important thing is to have a cutting edge." added Ancelotti.

"Simeone is a good friend, one of the best coaches in the world and I like his style and his way of playing. I would like to play like him now and again."

Defender Mats Hummels has recovered from a knee injury that forced him out of Saturday's 1-0 win at Hamburg as Bayern made it eight wins out of eight since Ancelotti took charge.

However, Lahm admitted Atletico would be Bayern's biggest test of the season so far.

"It is a semi-finalist versus a finalist of the Champions League. It is a top match," said the former German captain.

"We haven't always played as well as we would like so far this season in the Bundesliga, but we have managed to win.

Simeone confirmed that Fernando Torres will start up front alongside Griezmann for Atletico, who will be without the injured Jose Maria Gimenez and Augusto Fernandez.