German player Sandra Ittlinger sets for partner Isabel Schneider

George Wanderley hits the tape in the match that saw the FIVB World Ranking leaders fall to Austrians Robin Seidl and Philipp Waller

Italian Valentina Gottardi digs in the literal sense of the word, to make the save

Dutch athlete Ruben Penninga celebrates in the match in which he and partner Leon Luini stunned Brazilians Bruno Schmidt and Saymon Barbosa

Tina Graudina of Latvia watches as the ball hits the net and falls to the ground

Spanish veteran Pablo Herrera uses his full vertical jump to try and stop Chile's Esteban Grimalt

A big smile from Swiss player Nina Brunner as she and partner Tanja Hüberli win both of their matches in Hamburg

Italian Adrian Carambula stretches to get to the ball

World Championship silver medallists Sophie Bukovec and Brandie Wilkerson of Canada were also perfect on the opening day of the main draw in Germany

An elated Nils Ehlers celebrates a win in front of his home fans