TOKYO : Controversial sumo grand champion Asashoryu announced his retirement on Thursday following a drunken attack on a man outside a Tokyo nightclub. 
"I decided to retire. So many things have happened. But I feel fine right now," the 29-year-old Mongolian told reporters. 
Asashoryu, whose real name is Dolgorsuren Dagvadorj, attacked the man following a drinking session in the middle of the season-opening tournament last month in Tokyo.