Hhne joined the VC Olympia and was appointed to the German junior national team where he led the under-21 team as a captain for FIVB Volleyball Men's U21 World Championship 2011 (organized by Fdration Internationale de Volleyball) in Brazil, and where it reached the 10th place.
Later he joined the VC Olympia and was appointed to the German junior national team. He led the under-21 team as a captain for FIVB Volleyball Men's U21 World Championship 2011 in Brazil, where it reached the 10th place. The FIVB Volleyball Men's U21 World Championship, called the FIVB Volleyball Men's Junior World Championship between 2007 and 2011, is the world championship of volleyball for male players under the age of 21 organized by Federation Internationale de Volleyball (FIVB). 
