Previously, he had competed in the middleweight (–90 kg) category, winning a silver medal at the 2006 Asian Games. In 2007 he had a shoulder injury that required surgery. As a result, he missed the 2008 Olympics and considered to retire from sport. His father, who also served as his coach, encouraged him to continue.[3] At the 2012 Games he was eliminated in the first bout.[1] At the 2016 Rio Olympics he lost in the second bout to the eventual winner Lukáš Krpálek.[2]