Topics: Pep Guardiola, Bayern Munich, Xabi Alonso, Manuel Neuer, Lionel Messi, Barcelona, UEFA Champions League
Guadiola claims there is nothing that can stop him. For Alonso it is Ronaldo who should be considered the best.

Every team that finds itself about to face Barcelona ask themselves one simple question. Can Lionel Messi be stopped? Not many teams seem to have the answer to it, or fail in the execution of their plan. La Pulga has turned into the center of attention for Bayern Munich players if they want to make it to the final in Berlin.

Josep Guardiola returns to the place where he shared a lot of success with the Argentinian star. During his four-year stint as Barcelona's coach, both won it all. From La Liga to a UEFA Champions League titles. For Guardiola there is not a way to stop Messi, who time and time again surprises soccer fans worldwide.

"There's no team, no system or coach who can stop Messi. You can't defend against that kind of talent," Pep said. "All you can do is try to limit him, close down channels where he can get the ball but even then, you won’t completely stop him."

Guardiola and Messi learned a lot about each other during their time togetherPep and Messi were successful together with BarcelonaMessi has scored 75 goals in the Champions League, eight of them have come this season, but he is still not the leading goal-scorer. That place belongs to Cristiano Ronaldo (Real Madrid) and Luiz Adriano (Shakhtar Donetsk) with nine. Bayern Munich is the team that has scored the most goals this season with 30. 

Xabi Alonso is one of the men that will try to stop Messi from causing any damage to the German side. The Spanish defender is in his first season with Bayern Munich after playing alongside Cristiano Ronaldo. If he had to choose who the best player is, he would go with the Portuguese star.

"While I was at Madrid, for me, Cristiano was the best," Alonso said. "I've played a lot of times against Barça over the years, but this time is going to be very different."

Messi became a nightmare for Madrid when Alonso was thereMessi became a nightmare for Madrid when Alonso was there

In case that the defenders of the Bavarian team give Messi enough space to go through, it is up to Manuel Neuer to avoid La Pulga from getting on the scoreboard. Neuer has faced Messi in the World Cup final and was among the three candidates for the 2015 Ballon d'Or. In the end it was Cristiano who won the award.

"It's crucial to show authority when we meet on the pitch and show him who's boss. I did the same in the World Cup final and this worked out pretty well," Neuer claimed, adding that he had a lot of respect for Messi.

Neuer beat Messi with Germany in the 2014 Brazil World CupMessi was not too happy when he had to share the stage with Neuer.