 Complete the following phrase:  Christoph Fildebrandt born 27 May 1989 is a German swimmer. He won a silver and a bronze medal in freestyle relays at the European and world short-course championships in 2010 and 2012, respectively. At the 2012 Summer Olympics, his team finished sixth in the 4 × 100 m freestyle relay. At the 2016 Summer Olympics in Rio de Janeiro, he competed in the 