France's Mamadou Sakho tackles Thomas Müller of Germany during their quarterfinal match. Germany moved on to the semis with a 1-0 victory.

Ryu Voelkel is Howler Magazine's European photographer. He's currently in Brazil shooting for his forthcoming book of World Cup photography, RYU X RIO, which you can pre-order here.

©2014 Ryu Voelkel