Yoshihiro Akiyama

Yoshihiro Akiyama , also known as Choo Sung-hoon (Korean: 추성훈) and by his nickname Sexyama, is a Japanese mixed martial artist and judoka who won the gold medal at the 2001 Asian Championships for South Korea and for Japan at the 2002 Asian Games. He is the former K-1 HERO's Light Heavyweight Grand Prix Tournament Champion.