I need to know what font is this

Thanks.

Nature of Believing  Suggérée par TCru 

The letters are from the Puma custom font Nature of Believing which was used during the 2014 World Cup and on some South American clubs before that. The numbers are modified Nature of Believing numerals.

The image you posted is the font Borussia Dortmund ( www.bvb.de ) will be using for the coming season. I am not sure if that is exclusive to Dortmund but at present only Dortmund is using the font.

Eduardo Manso designed Nature of Believing so he probably modified the font at Puma's request. As for the name, he knows it if it was given a new name. If you want to give it a name, call it BVB font or Dortmund font.

As for availability, the original is not available but there are unofficial digitizations floating around.

More information here: https://www.fontshop.com/content/world-cup-typography-eduardo-manso